Bruce I've done the same but just to north stradboke ,used to see dugong and really large Jelly fish. A bit of a bonus getting payed to enjoy a day on the water
I spent 20 years between the 70's & 2000 working around the east and north coasts of Aus on lighthouses.
I can't think of a nicer way to go to work.
Seems like a life time ago now.