I would start with McCray road. It is green(basic) at first, them in the middle it turns blue(medium). If you go all the up, you will reach a peak point- very nice view from there(grab the camera with you. Watch for the signs, its easy to get lost. Don't go alone, grab some water with you.
You may want to air down- usually its recommended at most trails because it gives better traction and more comfortable ride. People usually air down to 15-20 psi. You are gonna have fun there i know