I wasn't sure whether he was demonstrating the surface tension skating skills of a raft spider or in trouble. He certainly wasn't drowning - although he was occasionally waving.
The more I watched, the more I realised he was pedalling fast to get to the edge of the water dish and going absolutely nowhere. Time for a photo first given he was pretty good on those stilts. And then, of course, a rescue. I've left a stick there now so anything else can climb out.
Look at those jaws!