The Ohlone Wilderness Regional Trail requires a permit and map for day use or overnight camping. The permit is good for one year and costs $2 per person when purchased in person. Permits can be bought at Del Valle Park or Sunol kiosks if staffed, or online, by phone, or by mail for $4 per person. Every visitor over age 12 needs their own permit. Get your permit ahead of time to enjoy the Ohlone Wilderness Regional Trail hassle-free. Purchase locations include park kiosks, online at EBParks.org/Register, by calling 1-888-327-2757, or through the mail. Have your permit before heading out on this beautiful trail.