If you see pics from a beach that has what looks like dead palm trees growing on it, it is probably from Kazantip, a huge rave festival held every year on the Black Sea between Koktebel and Odessa. Most of the nudity seems to be just topless, but there are lots of pics if you scrounge and occasional nudes are mixed in.
Searching under Kazantip is very productive, but it can also be spelled "Kasantip" or "Kazantyp". Using the Russian alphabet version is better as you would expect, but there are variations in its spelling too. There will be tags at Photofile.ru and Fotoplenka.ru that you can click on to bring up lots of pics.
The festival lasts five weeks and employs 300 DJ's. People have been known to never make it back to civilization when its over
Look at the pics and see why. The same thing would happen if Burning Man went on for that long.
enjoy,
Klondike