Floating ring. Very popular with the fans who liked those wrestlers fall in and get wet, especially if it was the heels! Sometimes done in a lake in a park. Still very much a French thing even in the C21st. Funnily enough as a kid I once had a dream that there was Water Wrestling on a floating ring in the pool in next door's garden. In real life next door didn't have a pool but what the heck, it was just a dream. Strange to find out years later that this was being done for real somewhere.