Friday photo: A series of sunsets

We conclude our sunset series with this beautiful display of colour spotted at Fish Hoek beach one Friday evening.

Posted by on 25 January 2015 | 11:28 pm

Newsletter: My flaw has plans

Hi divers Weekend dives Sunday: Launching from Simon’s Town jetty at 9.00 for SAS Pietermaritzburg and Outer Photographer’s Reef at 11.30 am Conditions We had fantastic diving in freezing cold water in False Bay on Friday for the Advanced course currently...

Posted by on 22 January 2015 | 12:20 pm

Article: Wired on giant ocean eddies

Scientists have discovered giant eddies, 100 kilometres across, making their leisurely way across the world’s oceans. The rotational effect extends up to a kilometre below the ocean’s surface. They are quite beautiful when visualised (if...

Posted by on 19 January 2015 | 11:10 pm

Friday photo: Blue sunset at Muizenberg

At the change of seasons from spring to summer we enjoyed beautiful clouds over False Bay, like this example of blue-grey rain clouds seen from Muizenberg.

Posted by on 15 January 2015 | 11:28 pm

Newsletter: Beach adjustments

Hi divers Weekend diving Friday: Shore dives at Long Beach Sunday: Launching from Simon’s Town jetty for the SAS Pietermaritzburg at 8.00 / Outer Photographer’s Reef at 11.00 Conditions Given the time of year, we can expect fair conditions...

Posted by on 15 January 2015 | 12:55 pm

Article: Wired on using satellites to monitor illegal fishing

An article on reveals a bold plan to detect illegal fishing activity using satellite moitoring of AIS data of large ships at sea, and some clever algorithms to narrow down the data to ships (other than those...

Posted by on 11 January 2015 | 11:40 pm

Bookshelf: Shorelines, Strandlopers and Shell Middens

Shorelines, Strandlopers and Shell Middens – John Parkington I’m currently delving into some subjects I know nothing about, stone age archaeology being one. I harboured a childhood dream of excavating ancient Egyptian artefacts, but that came...

Posted by on 10 January 2015 | 11:43 pm

Friday photo: Spring low at the jetty

Spring low tide at the jetty allowed us to poke around on the beach in the corner below Jubilee Square. From there we had this beautiful view across the yacht basin, with the jetty in...

Posted by on 8 January 2015 | 11:28 pm

Newsletter: Above and below

Hi divers Weekend dives Saturday: Early (6.30am) drift dive for the curious, in False Bay Sunday: Boat dives from Hout Bay to Tafelberg Reef and the wreck of the BOS 400 (subject to change of location if conditions aren’t suitable)...

Posted by on 8 January 2015 | 10:47 am

The illegal abalone trade in the Western Cape

The words “organised crime” don’t typically intrude into our privileged Capetonian lives (if you can afford to scuba dive recreationally, you’re privileged), but in reality there are networks operating on our doorstep, and many of...

Posted by on 6 January 2015 | 11:09 pm

Article: Carl Zimmer (Phenomena) on the science of Moby-Dick

Carl Zimmer, a writer for the National Geographic Phenomena blog, was commissioned to write a commemorative piece on the science of Herman Melville’s whaling novel Moby Dick. I recently listened to the audiobook (all 26 hours...

Posted by on 4 January 2015 | 11:41 pm

Bookshelf: The Coastal Guide of South Africa

The Coastal Guide of South Africa – Lynne Matthews This is a slim guidebook that will be useful to anyone living at the coast or enjoying a holiday there. Covering all of South Africa’s almost...

Posted by on 3 January 2015 | 11:42 pm

Article: Randall Munroe (xkcd) on disappearing oceans

Have you ever wondered: What would happen if all the bodies of water on Earth magically disappeared? The answer – involving ships plummeting kilometres down to the ocean floor – is entertaining. Randall Munroe of...

Posted by on 2 January 2015 | 11:40 pm

Friday photo: St James

There are colourful beach huts on St James beach, similar to the ones at Muizenberg. This beach, with its innumerable rockpools waiting to be investigated, is your final destination on the Muizenberg-St James walk, unless...

Posted by on 1 January 2015 | 11:30 pm

Newsletter: Beginnings!

Hi divers Weekend diving Friday: Shore dives with students at Long Beach at 8.30 Saturday: Boat dives to the western side of Roman Rock at 9.30 and to Caravan Reef (PMB Reef) at 12.00 Sunday: Boat dives to...

Posted by on 1 January 2015 | 12:43 pm

Bookshelf: Ocean of Life

Ocean of Life – Callum Roberts This book is both deeply alarming and relentlessly optimistic. Its author, Callum Roberts, is a professor of marine conservation. He is able to see with clear eyes the damage that we...

Posted by on 30 December 2014 | 11:20 pm

Google street view goes to the Antarctic

The ice-obsessed will rejoice with me at this (not at all recent, actually) news: Google has included a number of Antarctic destinations on street view. Destinations include Half Moon Island in the South Shetlands, South Georgia Island, where...

Posted by on 28 December 2014 | 11:10 pm

Bookshelf: Shrimp

Shrimp: The Endless Quest for Pink Gold – Jack & Anne Rudloe Before reading this book it was important to determine the difference between shrimp (which we almost never talk about or eat in South...

Posted by on 27 December 2014 | 11:40 pm

Article(s): The New York Times on the Christmas 2004 tsunami

Yesterday marked the 10th anniversary of the massive Sumatra-Andaman earthquake in the Indian Ocean. The quake’s epicentre was off the coast of the island of Sumatra in Indonesia, and triggered a massive tsunami with waves over 30...

Posted by on 26 December 2014 | 11:40 pm

Friday photo: Big rock

Here’s a small sandy and rocky beach, guarded by a huge, almost cubic boulder. It’s located on the route between Muizenberg and St James. I think it’s rather striking. When the tide is out, you might...

Posted by on 25 December 2014 | 11:30 pm