While we were at Granite Lake these two people appeared out of nowhere stood across from us on the lake and instead of them going skinny dipping they begin to get it on. It was my kids that pointed it out and of course being boys they were all bragging about how they seen boob. I guess that skinny dipping is common at some of the lakes in the sierras its just part of the Sierra culture here so I respectfully filmed them from afar but no less they had no issues giving it to eachother in front of us and other hikers who were sitting on the shoreline. They were not naked and afraid but I sure was LMAO! We found also a grinding rock here it was rather unique because it shows signs that there probably was a small Native American settlement here at one time.