My main concern is that I will be travelling alone. Assuming that properly secured valuables (money, credit cards, passport, land camera kit etc in room safe) are safe in a reputed resort like The Habitat, the only way I can shore dive outside of the house reefs would be to join a group. But people travelling and diving together are unlikely to let a stranger join them. But if by some chance 4 or 5 of us get together and rent a truck, is there the possibility of hiring a local to remain in the vehicle while we are out diving? If shared by all concerned, his fee should work out reasonable for individuals.
One needs certain things after a dive - water bottles, towel etc. Also, clothes have to be left behind in the vehicle. One cannot take everything necessary on the actual dive.