I've done it off a boat. Took me a bit to do it the first time, mind you.
Some boats its easier than trying to maneuver yourself around to do a back roll.
I didn't say it can't be done off some boats because it can but you can't do it off all boats. Standing up on the edge of an inflatable and doing a forward roll would be an interesting entry to watch I'm willing to watch if you're game to try it though
Ber :lilbunny: