| You can forget the 3mm shorty, especially if there is any chance of touching the coral. The 5mm should be enough but be aware that you may get cold at the surface with the wind chill. Membrane suit and some thin thermal like a base layer might be your best option. Alternatively, the Forth Element Thermocline stuff is wonderful, a sort of rubberised polartec fleece it is the equivalent of 2mm neoprene without adding to your buoyancy. I wear it under a wetty sometimes and it's great stuff although not cheap.
__________________ Give a hungry man a fish and he will eat for a day
Teach a hungry man to fish and he will buy a bad hat
Talk to a hungry man about fishing and you are a consultant.
Safe diving
Pete |