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  • In Gansbaai, the largest white shark ever caught was at Danger Point and measured up to 5.9m. The exact world record white shark is a contested issue, but chances are it is between 6-7m.

  • If you see a white shark in the water don’t panic. Chances are high that the shark has already detected you and isn’t interested. White shark attacks are normally associated with poor visibility, so avoid murky conditions.

  • White sharks have a unique system called a “counter current heat exchange”, which keeps their body  tempreture +/- 7C above the surrounding water temperature. 

  • All sharks have an incredibly unique system on the tip of their nose called the “ampillae of Lorenzini”. These are small pores filled with a gel that transmits the electrical currents in the water to the shark’s brain so that it can assess its environment.

  • White sharks give birth to live young (not eggs), and they give birth to 6-8 pups at one time. Pups are usually between 1.0-1.5m in length and are born with teeth.

  • Body language has been a well documented form of shark communication and has identified body arching, jaw gaping, and other postures as specific social tactics.

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The Crew

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Wilfred Chivell - Owner of Marine Dynamics

Wilfred Chivell can be described in many ways – charismatic, dynamic, naturalist, visionary, rough diamond, entrepreneur and shrewd business man . . . and they all fit him like a glove. But beneath a tough outer veneer is a softie who gets all mushy and poetic about a petite little bird and who will not hesitate to put his life at risk to rescue an endangered animal.

Hennie Otto - Skipper & General Manager

General Manager and Skipper Hennie Otto regards his vast responsibilities as captain of the crew as "a full-time paid holiday and a way of life" rather than a job. A versatile all-rounder who also boasts in-depth knowledge of seabirds (both vagrants and residents) and a fundi with cameras, Hennie is the guy to help you set your camera for those once in a lifetime shots. 

Jan du Toit - Skipper

Skipper Jan du Toit was born and raised in Gansbaai. He truly loves the sea and was once a commercial diamond diver, involved in the commercial fishing industry, and then joined the shark cage diving world in 2010.

Pieter du Toit - Skipper

Pieter du Toit, skipper on Slashfin, has quickly mastered the art of identifying the various sharks that frequent the area between Dyer Island and Geyser Rock and even "befriended" several by name! Pieter also enjoys handling the sharks when on board. He knows exactly how, when and where to cast the bait and when to deftly pull it back to ensure the divers get some really close encounters.

Alison Towner - Marine biologist DICT, PhD Candidate.

Inspired from a young age by her late father’s ambition to dive with White Sharks, Alison graduated from UK’S Bangor university in 2006 with a BSc Honours in Marine biology.

Kelly Baker - Guiding Biologist

Guiding Biologist - BSc Biological Sciences, University of Wollongong, Australia