There's something for everyone. For advanced, hard core riders, there's only two tougher tails. But, ride all of them and you'll have your workout for the day.
How to get there:
From I-540. Get off on the Zero exit. Go east. Enter Ben Geren Park (main entrance), follow the road right. You'll pass a mini golf course on right and eventually soft ball fields on you right as well. The first right after softball fields turn right. Go down this road about a quarter of a mile. Pull into the parking lot on the left. Park here and follow the paved bike/walk trail to the dirt trail of your choice.
There is no map of the trails, but all the trails lead back to the paved trail. That is your point o