We went to Gulches last year. It was pretty cool. We tossed each of the kids a roll bar mounted duffel bag and told them they could bring what they could fit in it. The 16yr old boy was fine, the 14yr old girl was almost inconsolable lol. Loaded up the TJ with the four of us and we were on our way. It was a cool place. Not huge but certainly big enough to be fun and worth the trip. We stuck to the reasonable stuff because we had a TJ on 31s at the time, but they had other trails that could definitely break stuff if you so desire. They also offered guided outings which were fun too.
We stayed at the cabin right down the street that the owners rent to Gulches participants. It was beautiful, clean and all by itself :)
It was a great trip, we are thinking about doing it again sometime later this year in the JKU. Let me know if you need/want more info.
EDIT: Wow, I just saw that the original post was from a year ago, sorry about the irrelevant post. But, it was still a cool place :)
Joe
OB #5011