Planning a trip to Key Largo for my Check out Dives for my certification through SDI. Was wondering what wetsuit thickness I should have for June? From what I've gathered from previous older threads is that people are diving 3mm and 5mm in the Spring and the Winter. And Summer months everyone is wearing Swimsuits and Skins? I'm kind of leaning towards a 3mm since I plan on doing multiple dives through the day for 3 or 4 days. Thoughts?