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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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Sharkwatch SA Blog

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Great White Shark Cage Diving Daily Blog 19 April 2017 (Trip 1 + 2 + 3)

Author: Kelly Baker (Biologist)

Guest comment: “What an awesome experience. I swore I'd never get in the cage but the staff's enthusiasm and the shark's beauty hooked me in! Brilliant...Thank you!" - Tim + Nicky

"We loved it! The crew were so knowledgeable and friendly - absolutely amazing exsperience. Highly recommend!" - Vinnie + Rebecca

"A wonderful, unique experience. A great day out, fun and informative!" - Michael + Emer

19/04/2017

Location: Joubertsdam                                                                                                                                                         

Water Temperature: 11.8’C + 11.5’C + 11.4'C

Depth:  11.1m + 11.5m + 11.0m

Visibility: 2.5m + 1.5m + 1.5m

Number of Sharks: 9 + 9 + 3

Conditions: Increasing east wind causing some chop otherwise nice conditions.

It was a pleasure to be out on the water this morning with fantastic conditions and sharks arriving not too long after we ourselves had. We started our sightings with a large female, approximately 4.0m in length before a juvenile female we know as “Sarko” appeared giving us a beautiful comparison of sizes with “Sarko” estimated at only 2.6m in length she appeared tiny compared to our first female. The male White sharks then decided to make and appearance with a fast-paced juvenile rocketing in, “Brian” a 3.5m male we recently deployed an acoustic tag on, “Mini Nemo” the male with a shortened right pectoral fin and a male not well known to us who made slow attempts towards the boat with some aerial gaping witnessed. Whilst the water temperature was quite low today we still briefly witness a Short-tailed stingray, a species that we generally see with temperature 15.0’C or above.

The second trip of the day was off to a good start with sharks present within 15 minutes of arrival back in the Shallows. The excitement could be felt on board with multiple sightings, continuous activity and active behaviour. Many of the sharks seen this trip, much like the previous one exhibited slow but interesting behaviour as they approached, head slightly out of the water with jaws open. We were lucky enough to have “Mini Nemo” back visiting for this group as well as some of the other previous trip’s individuals too with a variety of gender with both male and female present and a size range of approximately 3.0m to 4.0m.

On our last trip we arrived at the anchor site, an hour wait ensured with no sightings so it was decided to move anchor to try our luck in another spot. This proved to be a good decision and three different sharks were then seen. "Mini Nemo" yet again made his presence known, always a fantastic shark to see around, and today all three trips and all guests were lucky enough to be introduced to this amazing White shark.

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