Ever interesting Wired.com shared a photo gallery and brief article about an attack on a pod of dolphins by some wild orcas in Monterey Bay, California. It’s both spectacular and disturbing to see how one of the orcas rams a dolphin and flips it right out of the water like a tiny toy. Once the dolphin is stunned, the orca can move in for the kill. Killer whales are extremely intelligent, social, and complex creatures. They should not be kept in captivity. (Some people even believe they should have rights, like humans.)

I must share this fascinating nugget from the article. After the recent sightings of killer whales in False Bay, Tony and I were debating what an orca would do upon encountering a human in the water: investigate, see them as potential prey, or something else. Here’s a theory:

There has only been one (moderately reliable) account of a wild killer whale attacking a person, Ford said, an accidental encounter involving a surfer in the 1970s. Since then, people have described orcas zooming in for close inspections, but veering away at the last minute. Why they ignore humans is a mystery. It could be that orcas haven’t recognized that humans are edible, or it could be that neoprene wet suits typically render divers opaque to orca sonar. The nitrogen bubbles embedded in the rubber not only thermally insulate a swimmer, but in a stealthy coincidence, are acoustically reflective.

How fascinating is that? Read the full article here.

I’m having a little retrospective on our 2011 summer trip to Denmark. Here’s Vedbæk harbour, looking gorgeous in the early evening.

The pleasure boat harbour at Vedbæk

Hi divers

Summer winds are fading and winter winds are slowly starting to arrive. The visibility of the Atlantic sites drops off and the water in False bay gets cleaner and cleaner as if pumped through a filter. A whole new range of creatures start to make an appearance while other creatures hide somewhere warmer. There are still several giant short tail stingrays hanging around at Miller’s Point, where the fishing boats drop the fish guts overboard near the slipway.

Ray at the slipway

Many people feel it’s too cold to dive in winter… It is cold for sure, but with the right gear and on the right days, winter diving in Cape Town beats anything summer can come up with. Currently False Bay is clean and the temperature is around  15-16 degrees. By adding a shorty, decent gloves and a thicker hoodie you are all set. Dry suits, or damp suits as I call them, do also work, when they work. I don’t sell gear but I am very happy to give advice on whether a deal is a deal or a rip off!

Sevengill cowshark

We had fair conditions last weekend and dived with the sevengill cowsharks (thanks to Tamsyn again for the awesome photo!) and the seals on Sunday. It was surgy and the viz wasn’t the best but Shark Alley was swarming with sharks. Unfortunately the seals didn’t want to come and play because of the swell. Fortunately the reef around Partridge Point is stunning! The wind has been north and west a few days this week and the visibility has improved.

Weekend plans

As for the weekend – tomorrow looks the best, but Saturday could work for one launch to Tivoli Pinnacles or an early double tank dive to Atlantis and Outer Castle.  The wind comes up very strongly around lunchtime so we want to be out of the water early. Sunday will be wetter on the surface than it will below so I guess it’s a stay at home and watch Formula 1 instead.

As usual text me if you want to dive tomorrow or on Saturday. We are really looking forward to our Durban trip on 17 June, which is getting closer. There is still space on this trip and our Red Sea liveaboard trip in October, so give it some thought and let me know if you want more information.

One of the divers on the boat two weeks ago took this video of the seal we saw at the slipway. Keep watching right to the end!

regards

Tony Lindeque
076 817 1099
www.learntodivetoday.co.za
www.learntodivetoday.co.za/blog/

Diving is addictive!

First view of the BOS 400 when entering Maori Bay from the south

I spent a relaxed day out on the boat in mid April with some casual divers and a couple of my Divemaster candidates, looking for clean water in the Atlantic and doing bounce dives. While searching for a good place to dive, we passed through Maori Bay where the SS Maori, SS Oakburn, and the BOS 400 wrecks are. The BOS 400 is a massive crane barge that is grounded on the boulders at the entrance to the bay. Much of the wreck is already underwater. In the picture below, you can see right through to the rocks behind the wreck.

Winch drums on the BOS 400

The BOS 400 is spectacular to view from the surface, and has undergone some changes in the years we’ve been diving her. One day this entire wreck will probably end up submerged, and the diving will only get better. She’s a huge vessel with a complex, visually interesting structure.

Here’s an update of what the wreck of the BOS 400 looks like from the surface. These photos were taken on 13 April 2013.

Date: 13 April 2013

Hout Bay near sunrise

Saturday 13 April was a magnificent, windless day. I had only a few divers on the boat, as the Open Water student who was meant to do her qualifying dives that day (as a double tank dive) had woken up with sinusitis. We made the most of the amazing surface conditions to cruise around the area looking for clean water. The visibility wasn’t terrible, at around 8-10 metres, but it was inconsistent and wouldn’t qualify as a magnificent Atlantic day.

First view of the BOS 400 when entering Maori Bay from the south

Despite that we had a great time – did three dives in various locations, checked out the BOS 400, and the wreckage on shore close to Middelmas Blinder (Hakka Reef), just around the corner from Maori Bay. I’ll share more photos of the BOS 400 tomorrow.

Cara, Anna and Josh

I thought I’d share a couple of photos from our very first bunch of students in the pool at home, when they came to take their first breaths underwater and do some of the basic skills for an Open Water diver.

Josh breathing underwater

That experience of inhaling underwater for the first time – and receiving clean air from one’s regulator instead of a mouthful of water – is unforgettable. This is a great thing to be able to share with students, and it’s exciting to have a safe, clean, unhurried environment to do it in.

Anna suited up in the pool

Date: 26 February 2013

Kate, Craig and Mark on the jetty

Late in February we took an afternoon boat ride down to the broadnose sevengill cowsharks near Miller’s Point. I had students, so Mark skippered for us. The inimitable Kate had arrived from the UK a few weeks ago and wasted no time making trouble!

Craig and Kate disagree mildly

We were fortunate to see some dolphins in the distance on our way back from the dive.

Watching dolphins

It was late afternoon by the time I took the boat home. On the way past the wreck of the Clan Stuart I had to stop and take a photograph as the sun was setting.

The Clan Stuart at sunset

If you’re wondering why every photo looks as though there’s a cloud of tiny black bats in the background, it’s because the sensor on my camera was BADLY in need of a clean. Thank you Orms for sorting it out!

We return to Chapter 32 (“Cetology“) of Moby Dick by Herman Mellville. Here, he muses briefly on the humpbacked whale:

This whale is often seen on the northern American coast. He has been frequently captured there, and towed into harbor. He has a great pack on him like a peddler; or you might call him the Elephant and Castle whale. At any rate, the popular name for him does not sufficiently distinguish him, since the sperm whale also has a hump though a smaller one. His oil is not very valuable. He has baleen. He is the most gamesome and light-hearted of all the whales, making more gay foam and white water generally than any other of them.

source

Harbour swimming in Denmark

I took this photo at a tiny pleasure harbour in Denmark in a small town called Espergærde, where an elderly lady had just climbed out of the water after her morning swim. She told us the water was seventeen degrees – not bad for that far north in midsummer…

Hi divers

Despite summer doing its best to hold on, the winter diving has started and in general the viz in False Bay has improved. The sun takes its time getting up in the morning and goes to bed way before dinner time for me, not my favourite season… (I might be afraid of the dark.)

Last weekend was a perfect example of the ocean reminding me that my understanding of its intricacies is way below par. We dived at Pyramid Rock and had 4-5 metre viz on Saturday but went back on Sunday and had twice that. Waiting at the slipway to recover the boat we had a visit from a seal and it almost seemed as if he wanted to jump in the boat.

Seal at the slipway

We attended a swell course run by Spike from Wavescape during the week and learnt a lot about reading and understanding weather forecasts and such stuff. The course is primarily aimed at surfers but is in fact of benefit to any ocean user.

Weekend plans

What does the weekend hold? Well there is some swell, not too much, and some wind, but very little. So I think both days will be good with Sunday being the better option for the boat. The plan is then to do shore dives on Saturday, most likely at Long Beach as we are running a Rescue course.

On Sunday we will launch from the yacht club in Simon’s Town and dive with the cowsharks and then at Partridge Point. We have not dived the reef system around Partridge in a while. We are visiting the cowsharks quite often but there are many, many sharks there right now and it’s not always this good.

Sevengill cowshark at Shark Alley

The shark photo in this newsletter was taken by renowned shark photographer Tamsyn Munnik (thanks Tamsyn!). Note how the cowshark is swimming high in the water column; they were all doing this on Sunday, and local shark scientist Alison Kock suggests that it was because they were swimming above the thermocline, avoiding the very cold water at the bottom.

Please text me if you want to dive on the weekend. If you want to go travelling and do some dives, text me about that too.

regards

Tony Lindeque
076 817 1099
www.learntodivetoday.co.za
www.learntodivetoday.co.za/blog/

Diving is addictive!