It actually sounds like the atmosphere I experienced at the regional israeli burn.

It was a very sexually comfortable vibe, where sex was encouraged (in specific areas like camp Free Love or your own tent) but not the center of attention. I really enjoyed that, one of the reasons I will probably go back. Additionally, it felt like a cuddle-party too. People broke down their walls and allowed their emotions to surface. A hug was a proper hug, a kiss was passionate and the tears were real, no matter if they were of joy or sadness.

I haven't experienced an orgy yet, but I did have polyamorous relationships (for a year). Looking forward to try out more.