When I was in high school there, they did "Rock Festivals" (remember those?) on New Year's Day inside the crater. Dawn to dusk, nonstop music and merriment, provided by the likes of Santana, Jefferson Airplane, and a bunch of amazing musical talent. It was like a mini-Woodstock, without the rain. I had an amazing, psychedelic time there. I swear I didn't inhale. LOL!
I remember walking through the tunnel to get inside the crater, and they were blasting the Beatles' "Come Together" through enormous loudspeakers. It was like a magnet. A really, really loud magnet. LOL!
Dave