There used to be a ton of great trails over there. Now, it seems that they widened a lot of the stuff along the river bank to 4 wheeler width. I guess that's ok though, cause I took my girlfriend on the back of my bike farther up along the bank to one of the little things that looks out over the river and she enjoyed it. You have to go farther in from the bank now to get to the good stuff.
Just presenting that as a warning for a newbie about the trials stuff. Some of it is really gnarly.