Pre-check list
You need to check all safety aspects before entering the water; are there rocks, where are they, is there a current, are there people watching on beach if need to be rescued. Also make sure all your basics are covered, the things that take two seconds to check, your equipment; ropes, UJ, foot-strap screws tight, etc.. It can be rather annoying if just a little bit of rope could have stopped your session from going the way you wanted it.