...I`ve done a few dives off a kayak, in fact, it was for a PADI Kayak Diver distinctive specialty certification. I dove off an Ocean Kayak (Scrambler XT) & my buddy off a Diveyak (inflatable kayak). The Diveyak is a little more stable, but since it has a completely FLAT bottom, it`s slower & harder to paddle! There`s alot of drag due to that flat bottom and it doesn`t cut cleanly thru the water, so my buddy got much more of a workout than I did!