Woah I just realized something. If you have a swimming pool and you put one of those inflatable kiddie pools in it and fill the kiddie pool, You can do this!
Excuse me while I go find my old kiddie pool and put it in the nearest big pool.
I'm pretty sure that first picture is in a lake or ocean. If not, that's a really deep pool that you can't see the bottom of and those are some insanely large pool waves.
Excuse me while I go find my old kiddie pool and put it in the nearest big pool.