robint
Contributor
I never wear less than a 3mm, even in Palau in 84 degree water! I also wear a beanie on my head. I don't move around much (shooting video, watching fish behavior, etc) , so I don't create heat. In Roatan and Cozumel I wore a 5mm (water was 78-80 degrees) as I was doing 3-5 dives per day over a week timeframe. No way I would have worn less.
robin
robin