Tag Archives: coral

Lizard Island, Part 2

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Monday 7 October 2024 – I was wondering how I would do when I faced the challenge of not making a total arse of myself on a snorkelling expedition yesterday, Sunday 6th, which was our last full day on Lizard Island. We were due to go out at 2pm on an expedition to see turtles and giant clams, so I started worrying thinking about how to prepare at, oh, I dunno, about 7am. Although I had vowed never to snorkel again, for some reason I had brought a waterproof camera with me, the rather capable Olympus Tough TG-5 that I had bought for our first major trip six years ago, when we went to South America, and it came in rather handy then. This, however, was its first serious outing since, and so I wondered whether 6 year old tech would still cut the mustard for creating photos for this blog. We’d also bought a waterproof case for Jane’s phone camera, which had not worked on its previous outing and we hoped it might be a backup in case my efforts came to naught.

There were only five punters for the outing: our American friends Susan and Michael (experienced divers both); Jane and me (experienced snorkellers one of us); and a lady called Louise who was perfectly pleasant but a bit of a chaos catalyst – she was a lady of last-minute decisions, such as would she snorkel or simply observe, and would she therefore fill out the disclaimer even if she was only going to observe, and would she provide credit card info to cover the cost and so forth.

So it was, at quite a few minutes past 2pm, we found Nemo

and set out across to Watson’s Bay, past a nice view of the resort’s main lodge.

Captain Tom briefed us on all the usual things,

like what to do if the boat caught fire, or sank, and Olla, our guide for the dive (sorry, no photo, but she’s a lot prettier than Tom) briefed us on what to do if we sank or otherwise had problems and, importantly, how to get out of the water once we’d finished.

Watson’s Bay revealed no turtles, so Tom steered us a little way out to what the resort calls the clam garden, where we could attempt to see the other half of the brief. Once there, Olla jumped in, Susan and Michael followed her example, as did Jane, and I did my best to slide gently off the boat so as not to get too much of the ocean deep into my sinuses, which I judged would have been a poor start to the activity.

My main reservation about snorkelling has been the dichotomy between being able to see (and photograph) what’s beneath me whilst still keeping up with a group; I can do one or the other, but not both. If I concentrate on looking below the water, I easily become disoriented and lose sight of the group, and then it takes me time to spot them and swim over, by which time, beneath their snorkelling masks, they’re rolling their eyes at my flailing around.  Thus you can imagine that I was a bit worried about keeping up, but Olla was towing a nice visible buoyancy ring, and I found this really helpful. I could see the group, the currents and the waves were small and so I could actually relax and spend a few of my limited mental MIPs on watching the reef below .

Which was fabulous.

For once, I was relaxed enough to be able to work out what the camera was doing and so, among the many dozens of photos I took, there are some good ones.

Blackspot Snapper and Lined Bristletooth
Colourful coral and fishes

Giant clam

Another giant clam

There are several more, which you can view at a Flickr Album I have created.

A photographic note here, since this is a photo blog as well as a travel blog.  If technical photo stuff bores you then (a) you are dead to me and (b) you may skip this bit (the next three images).

Here’s a comparison of what a photo from the Oympus looked like out of the camera, and what a bit of processing can do.

Image straight out of the camera, which means that the camera itself has made some decisions about colours and other key image characteristics

One of the things that I like about the camera is that it can capture images in RAW (sort of a digital negative format), which means two things: firstly, that every image needs some form of processing in order to be viewable; and secondly that a lot more detail can be got out of the image.  I can use my favourite processing software to gussy up the image that the camera has created from its own RAW data,

and you can see an improvement; but if I make exactly the same corrections to the RAW version, you get this:

better colours, more detail, less noise. To any people considering being serious about their photography, I present this as being why you should always make sure you have a camera which can do RAW.

OK, the rest of you can start reading again from here.

The giant clams were amazing – the colours (vivid electric greens, blues and purples) didn’t really look natural! As well as the many giants, there were much smaller clams, around 10-15cms long, embedded in the other corals (a few examples can be seen in the parrot fish picture above) which were equally brightly coloured although they tended to close up as one swam over them. To my untutored eye the coral looked to be in pretty good shape too, offering a multitude of shapes and colours. All in all the whole thing was a lot less stressful and much more rewarding than I had expected it to be.

That was pretty much it for the day, apart from one little item of wildlife that Jane spotted on our balcony before we turned in for the night;

a gecko, which had picked, as its ideal resting spot for the night, the space under my drying swimming trunks.

So: today, then: the day we left Lizard Island. There was something of a timing issue at stake: a visit to the Research Station was possible this morning, but then again our flight back to Cairns also left this morning. The resort staff did a great job of ensuring that we did both, again an example of the great service that accompanies the great food there.

We had a swift breakfast, keeping a stern eye on the seagulls which were positioning themselves for a guerilla raid on our breakfast bacon if we let our attention drift,

and then we (actually the exact same people who had gone out on the boat yesterday) set out in a couple of robust trucks on the track

to the Research Station

to be welcomed by Dr Lyle Vail,

one of the co-directors of the station, an extremely knowledgeable, eloquent and engaging man. He spent some 90 minutes filling our brains to overflowing with information about the station’s 51-year history, its three missions and the area it covers.

Lizard Island was once part of the mainland, back in the Good Old Days, when the sea level was 120 metres below today’s.  This, incidentally means that the outer edge of the Great Barrier Reef was a 120-metre high cliff, since deep ocean starts there. That’s 400 feet in old money – it must have been an extraordinary sight to see the waterfalls pouring over the edge. But inland of that edge, some 20,000 years ago, it was dry land, which is how come the island has a significant aboriginal history. Sea levels rose and Lizard Island was cut off about 6,000 years ago. Lyle described (in simple terms such that we mere mortals could understand) some of the scientific research that gives the evidence for that history.

He showed us an example of the research lab space they provide

which doesn’t look like much, but then the researchers bring much of their own gear when they can.  He also showed us an example of gear the station can provide

in the form of sophisticated microscopes, which are a bit tricky for researchers and students to bring for themselves. The centre also provides accommodation for up to 37 visiting scientists and students and boats for them to do their expeditions to the reef for research.

The station was in a quiet time, research-wise, so Lyle wasn’t able to show us much activity in the aquarium section of the station; but there was some work going on concerning the crown of thorns starfish, or COTS.

which (a) has to be handled very carefully on account of the spines being able to inject a very nasty venom

and (b) is causing great concern because of its ability to inflict terminal damage to coral reefs by extruding its stomach (at the centre underneath it) over sections of coral

and digesting the coral polyps. They graze back and forth, basically killing areas of reef.  Again, in the Good Old Days before humans started dicking about with the world’s climate systems, this was not a problem; but the warmer waters that arise from climate change make it easier for the COTS to multiply, in turn threatening the reef. The female can produce millions of eggs; the survival rates of the subsequent larvae are boosted by warmer water temperatures (and higher nutrient levels due to agricultural runoff).

Lyle also talked us through bleaching (another probable consequence of climate change)

and showed us a tank where a controlled temperature is being maintained

in order to make specific observations. The tank, by the way, contained quite a sizeable clam.

It would have been fascinating to spend several more hours there listening to Lyle and appreciating his knowledge, passion and ability to explain stuff. But we had to leave, a departure made slightly more tense by Louise’s indecisiveness a out buying a Research Station T-shirt.  For our part, we made a small contribution to the station in the form of a nice new hat for Jane, swiftly chosen

and then had to take our leave for the airport to start our journey home.

So: is that it? Is That All There Is?

Not quite. We started our journey home as soon as the good old Cessna took off, but getting back to cold, wet, thundery Blighty was a two-day exercise, and I’ll write about that in the next post, which will be the closing entry for this trip.

 

Kimberley Day 2 – Montgomery Reef and Freshwater Cove

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Wednesday 14 August 2024 – Today saw a morning Zodiac cruise and an afternoon landing. The cruise was to see one of the many extraordinary phenomena that result from the geology of the Kimberley – tidal water movement at Montgomery Reef. The afternoon was spent walking at Freshwater Cove.

So, Montgomery Reef, then.

If you look at the track of our Zodiac cruise on Google Maps, it looks very dull indeed.

However, add the Satellite layer, and you begin to see what we were cruising through.

In detail,

you can see we were cruising up a creek. Because we were there as the tide was falling, it presented an amazing sight.

The range of tidal movement around Montgomery Reef is very high.  At Spring Tides, it can be a 12m (40ft) difference between sea levels at high and low tides.  We were there at Neap Tide, so the movement is much less – about 5.5m (17ft).  As the tide rises, the water rises above the reef; when it falls, the water has to go somewhere, and the shape of the reef means that it spills over in multiple channels. I stole an aerial photo which gives a clearer idea of what’s going on here.

It’s not just pouring out in the channels; it’s running over the surface of the reef everywhere.

Montgomery Reef is somewhat different to a regular coral reef. Whilst coral reefs are usually composed of limestone from coral skeletons, shell fragments and the remains of calcareous algae, Montgomery Reef is an ancient terrestrial tableland created from the same rocks as the surrounding Kimberley Basin. Covering the existing features of the rock is a more recent layer of marine sediment, including calcareous coral, shell and algae. Calcareous algae in the form of rhodoliths (the yellowish chunk in the picture)

are the predominant reef building organisms on Montgomery Reef. Rhodoliths are unattached, photosynthetic organisms made of coralline algae, which aggregate to form complex communities and in the case of Montgomery Reef, act as a long barrier across the reef. (Tom, our guide for the cruise, explained some of this detail, and I got the rest from this fact sheet).

The water in the channel appears to have a problem that would be labelled “pollution” were it seen in the UK – scummy froth on the surface.

However, it is entirely natural. Because the reef spends so much (i.e. half) of its time exposed to harsh sunlight, the corals that have colonised the reef have developed a natural protective substance which acts as a sunscreen, and this finds its way into the water with the fall of the tides.

The creek we cruised along is the feeding ground for green sea turtles, and we saw several heads pop up as we went along, as well as some swimming beside the Zodiac.  Annoyingly, they were always on the shallow side so we (seated as we were on the other side of the craft) rarely got to see anything.  Our optimism that we would surely see some turtle action on the way back was dashed as we returned up the other side, so we never got our turn at looking for turtles nearby. The best I got was this bit of video, which shows a turtle basking in the shallows.  Yes it does.

The afternoon saw our first landing, which was at Freshwater Cove.

An indigenous family lives there, and every group was welcomed with a speech from the niece of the family and her sister, who narrated a story from the Dreamtime and anointed everyone with a dab of ochre on their cheeks – the dark colour of the ochre was explained by the story we heard. The building top left in the photo is an artist’s hut, where punters can relax and (preferably) buy souvenirs, such as the hand-painted T-shirts, decorated in traditional style by family members.

It was a wet landing, and the nice folk at APT had ensured that there would be towels for people to dry their feet in order to change into shoes suitable for the rest of the afternoon.  A couple of walks were on offer: a short one along the beach; and a longer one (2km out and back, up a hill) to see some aboriginal rock art.  We had opted for the latter. Dain, the expedition leader had stressed in yesterday’s briefing that some of the going was over rocks and boulders, and that there would be reasonably large rocks to clamber up and down. (He had laid a test, which was that people had to be able to step up on to the stage in the Laperouse Theatre without any assistance as a prerequisite for anyone wanting to do the longer walk.)

There was a reasonably well-defined track for most of the walk

and people obediently trudged along it.

Inevitably, for a group like this, progress was at a gentle pace, but it gave us a chance to appreciate the remarkable rock formations we passed.

We had to squeeze through a narrow gap between two substantial boulders.

This is known as the “dessert gap”, as it’s a test as to whether someone has gone heavy on the puddings during the cruise. (Spoiler alert – there is a way round for the portly!)

At the top, our group rested for a few minutes

because another group was below us looking at the rock art.  When they surfaced, we clambered down past a scene that looked like something out of Picnic at Hanging Rock,

but which was actually the roof of a wide-mouthed cave, on which one could see the rock art.

“Where is it, then?”, you might well ask on seeing that photo. “Digitally removed”, is the answer; we had been briefed that respect for the native traditions dictated that while it was OK to take photos for our own records, these were not to be shared or published on social media: it is not for us to tell their stories. That’s why you can’t see any of the paintings in the photo above. Something you can see, however, is the colonies of native bees nesting in the blackened holes along the top of the back “wall” of the overhang, whose honey is harvested by the local people.

The father of the family, a chap called Neil, described the history behind the cave, which was known as the “cyclone cave” for the protection it afforded when the weather got uppity. When asked how old the paintings were, Neil said they go back 65,000 years.  I did some intensive research asked ChatGPT about this and discovered that, generally speaking, Kimberley rock art could stretch back as much as 17,000 years;  so the figure that Neil used could well be the folk memory which inspired some of the paintings, as there is broad understanding that Aboriginal peoples have been in Australia that long. Whatever, the paintings have great historic and cultural import for the indigenous people. They depicted various aspects of life – stingrays, turtles, fish, cyclones and even the cautionary tale of a little boy, who had disobeyed his mother’s instructions and gone out on a fishing expedition, only to be sadly killed in an accident. So the pictures give lessons as well as tell stories. The art is touched up by the family every so often to keep it fresh but new paintings are not added

Jane and I didn’t find the walk at all arduous; I should jolly well hope not – the temperature was “only” in the upper twenties – we’ve walked much further in far hotter conditions – and the going was by and large not at all challenging bar the final scramble. However, a couple of members of our group were unfortunately not up to completing the walk back to the shore without issue. To be frank, I’m not surprised; some of the people on this cruise are quite crocked in various ways – aged, frail or otherwise not in good shape. APT had, though, prepared for this eventuality, and a medical team was despatched from the beach – at a run, complete with stretcher – to support the two who were having problems, and they both eventually made it back to the boat OK.

After we returned to the ship, we didn’t have long to wait for the evening briefing; just long enough to pick up a drink at the bar, actually.  Dain explained what we would be seeing tomorrow, a combination of interesting geology and further unusual tidal action, this time in Talbot Bay.  APT had organised a casino evening in the lounge, which we really weren’t all that interested in, so after a bite of dinner al fresco we repaired to our cabin and tried (with not a great deal of success, it has to be said) to get an early night, as we had to be up betimes-ish for the Talbot Bay activity. Which will be revealed, of course, in the next thrilling installment, which I hope you would like to read in the fullness of time.

Days 7 & 8 – Coralation

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Saturday 21 and Sunday 22 May 2022 – Reader, I offer you a respite from having to wade through dozens of photos, similar to the respite we’ve had over the last days from having to Do Stuff All The Time. This entry will be mercifully short.

For the week up to and including yesterday, my Garmin Vivosmart calculated that I had exerted myself for 762 minutes at moderate intensity and 138 at vigorous intensity. This has been the hardest week since September last year when, you’ll remember because you read these pages,  Jane and I were walking a couple of hundred miles around Menorca.  However, yesterday and today registered a big, fat 0 on the Garminmeter mainly because we’ve not done much.  Here is what we have done.

Before our departure from Wadi Rum at an entirely reasonable 9am, I took a few more snaps of the site, including the view through one of our bubble’s windows.

You’ll notice that the silver sun-deflecting coverings have been taken off the bubbles – they are put on during the day and staff remove them in the late afternoon.  The site has expanded over the last few years; Jane found a couple of aerial photos which show its growth from pre-pandemic

to now (I’ve ringed the one we slept in).

 

There are reviews from May 2019 which mention (OK, complain about) construction work being done, which gives a good idea of what’s been going on.  I guess it must have taken quite a lot of confidence to carry on the development during the pandemic and hope that the tourists would return.  I don’t think the site was anywhere near full, but one hopes that the owners have made the right call for the future.

We were transported back to the entrance in Rum Village and managed to find Saeed among the slightly shambolic goings-on that inevitably surround trying to reunite punters with drivers over a reasonably large parking area.  And then we were off to Aqaba.  The countryside we passed through was granite and striking.

Saeed gave us a quick driving tour of Aqaba, which is a small city, but busy because it was the weekend (the Arab weekend is Friday and Saturday, remember, so it’s chaos arriving on Thursday evening and leaving on Saturday evening or early Sunday). One thing we noted was the ubiquity of a wonderfully colourful tree by the roadsides.

Jane looked it up and confirmed her theory that it is called a “Flamboyant Tree”, for some reason or other.  We also noted an unfamiliar thing:

a bag of bread left hanging on a tree.  Saeed explained that people often hang their left-over bread like this for others to take if they need, for example to feed animals, which is rather lovely.

He then dropped us off some 16km further south, at the Mövenpick Tala Bay Resort, which is very substantial and very resortish.

We checked in and had the luxury not only of having nothing to do, but also of knowing we had a relaxed morning the next day.  So we headed almost immediately for the lobby bar and had a welcome injection of gin before stumbling about until we found a restaurant for a late lunch – it really is quite a large place – the walk from reception to our room is (according to Garmin) 0.16 miles – and we found it a bit confusing trying to locate the best route from A (where we were) to B (where lunch would be).  But we managed it because we’re triers and had another welcome injection of western food – steak and chips in my case.  I like Jordanian food and have enjoyed eating here.  But – steak and chips, you know?

The rest of yesterday was spent bringing this blog not quite up to date and we got a reasonably early night with, as I say, the comfort that comes from not having an alarm set for the morning.

A small diversion: please excuse the schoolboy ignorance in me that caused me an inward snigger when I  saw this at the breakfast buffet.

Today’s activity, agreed with Saeed on the way down from Wadi Rum, was a trip out on the Red Sea on a glass-bottomed boat to look at the coral for which the sea is renowned. Saeed has a friend with a boat.  Who’d have guessed, eh? So he took us to the harbour, just by the fish market,

where it became clear that glass-bottomed boat trips are definitely A Thing in Aqaba.

We met Omar and his boat

and headed out at a gentle pace, consistent with not tearing the glass bottom out of the boat which would have been regrettable. There is plenty of coral growing naturally along the coast here, but The Powers That Be have undertaken a rather unusual initiative to give the coral extra places to grow.  Because it grows well on steel, they have dumped various objects – ships, old military tanks, that kind of thing, so that coral can grow on them and also in some cases as targets for divers to visit (Aqaba is also a big diving centre on account of it being rather nearer the sea that almost anywhere else in Jordan).  So he headed out to the first one and told us to grab our cameras.  At this point, it became clear that all was not clear.

It was very difficult to take decent photos with my Nikon through the glass on the bottom of the boat.

In fact, it was easier to get an idea of the ship and its coral by, erm, looking over the side.

When we got to some coastal coral a bit further on, I tried also using my mobile phone, and this was the best I could do

so I tried some video which at least gives an impression, even if the quality is, frankly, poor.

We had lunch on the boat – Omar had brought fish and chips (Jordan style) for us all with him, and the fish was sea bass, which was delicious.  After that we headed back to Aqaba and I took one or two more snaps on the way:

this, for example, is Eilat, on the opposite shore of the finger of the Red Sea that reaches up to Aqaba.  To me and Google Maps, Eilat is in Israel, but Saeed and Omar described it as being in Palestine.  I offer no further comment, mainly because the sensitivities and complexities are beyond my ken.  From Aqaba, not only can you see Eilat, but you can see into Egypt on that side of the finger (marked by the big Hotel Taba); and the border into Saudi Arabia is only 25km south of the city.  This proximity to many nations has a great bearing on Jordan’s culture, as I’ve mentioned before.

Having had only Lipton’s Ice Tea as refreshment with lunch, we found the siren call of the lobby bar irresistible, and treated ourselves to a couple of drinks before heading back to our room.  There was one final point of interest en route – the Mövenpick Chocolate Hour, which was an opportunity to grab a couple of treats to have with the cup of tea that I am drinking as I type this. But because they were free, we could be reassured that they contained no calories at all. No, really.

And that’s about it for Aqaba, and the blog is up to date.  We have another relaxed start tomorrow (yay!) as we depart at 10 for our next adventure which will take place in the Dana Nature Reserve, about three hours northish of here. It’s supposed to be really great for hiking in, which is good news, since our itinerary specifies that we will undertake a hike there. We know that, like Wadi Rum, there will be no booze served with our meals over the next couple of days. What I’m not sure of is the amount of internet there is, so you may well find yourself having another short respite from my deathless prose. It’s Sunday now and I will definitely be back online on Wednesday; I hope you’ll join me then.