I live by a f***** huge lake (to put in scale, its wider than lake Windermeer is long!), so the diving is pretty good here (apparently!).
There is supposed to be quite a few ship wrecks of varying sizes (mostly fishing boats). There's also a helicopter somewhere, but thats below 140m, so I doubt I'll be getting to that anytime soon!
All I've seen so far though is a tent, a bathtub, a chef with a blackboard advertising todays special as "Fish" and three dwarfs! Oh and quite a few fish too! []