Was sailing with Greenroom & WINDY MILLER yesterday just north of Hilarys. Miller & I both saw a shark. After comparing notes on what we saw and a bit of research it seems to have been a white pointer!

The dorsal fin was 40-50cm and the shark looked big! Are there any experts who can convert that to full-shark length?
At the time it didn't worry us - figuring it was a reef shark or something - and we continued sailing, trying new stuff and falling in etc. In hindsight we probably should have headed straight back to the beach!!