Yeah, I eagerly await the day they patch out the dev commands for good. Entirely too many crutches being handed out in the forums these days...

Edit: That said, OP, if you die in the water and don't have materials for a boat out to your corpse marker, I'd be willing to bring a Karve to your server and assist you getting it back. That's 100% intended gameplay, unlike flying or teleporting or spawning your stuff from thin air.