Hi Groupermadness, thanks for the warm welcome

!
Yes, False Bay is known for its GWSs. I think South Africa and Australia have the largest populations of these beauties.
Just a few months a go a group of divers went out on a dive charter (we use mostly semi-rigid rubber ducks modified for scuba diving), two groups went in at basically the same time, and one of the groups saw a GWS. It just cruised past them and disappeared into the blue. The other group did not have a clue it was there. That is usually what happens in most of the sightings.