I rode it once and I remember it being pretty cool. If I'm not mistaken, though, you have to pay $2 to get in. The terrain is rocky, but not technical (no large rocks to plan your line around). I'd actually like to join you on the ride if you wouldn't mind; I've been wanting to get back there.
That would be cool if you joined us (that goes for anyone as well).
We are going to hit it up Saturday in the AM.
It will be me and my girl, and while she is a solid rider, she definitly enjoys the sport at a more laid back pace so the ride will be less hammerhead and more exploration.
PM me for my # if you want to go.