Hello, The Foam Rave is at The Root on the hill in boulder. Tickets are 20 to 25 dollars upfront depending on where you go. Get your tickets before hand because I went to Phych there in Feb and I had to pay an extra 10 bucks at the door. I'm not sure what time it starts, I'm assuming at 10:00 like the last one I went to. The Root also has a myspace, so I would suggest checking that out. Bring your own Glowsticks and enough money. I wanna go but I don't think that I will have the money. Good luck