The below article is from 2005 but is still valid, well written by a tinnie skipper. As per Yara Philip and Cook didn't go to Port Jackson for no good reason - in numerous places of Botany Bay the depth is plurry shallow..............
www.smh.com.au/opinion/hidden-beauties-20050305-gdkuot.htmlThe below text is from the article............
In the benign weather, there are fishing boats dotted all over the bay and many floats attached to crab traps. It should be noted, however, that the combination of shallow water, strong winds and run-out tides can be lethal in Botany Bay. Treat the bay like the open ocean. Carry all the safety gear, including lifejackets, and you'll be fine.Obviously agree depends on the wind direction but also obviously your yachts draft. If you have a fixed keeler suggest keep way way out from Quibray Bay and other shallow areas - get an up to date chart and keep your depth sounder on permanently including alarm...........if you have a centreboarder or swing keeler make sure the raise system works properly on demand.
Of course a lunch anchor in the bay in fine weather is a sublime experience and should result in some fish for the pan depending on the tide..........