I hope that I'm not breaking any rules by asking this. If so, please delete, or tell me and I'll delete it.
I'm going to be diving Blue Hole to complete my Advanced Open Water on the 24-26th. I've only got a 3mm, and am being told that it won't be enough. Additionally, I'll be diving other reservoirs later this season, and they're gonna be cold.
I figured that there are probably members here who might have a 7mm in a L or XL that they're not using.