Bring lots of water, food and sunscreen. Binoculars and field guides to birds and wildflowers are heavy but useful additions. Dogs are allowed on all trails and may be off the leash as long as they are under control and the owner is carrying a leash. Horses are allowed on all routes. Bicycles are not allowed on the trail from Sunol.
Parking is free.
Drive past Mission San Jose and turn left into the Ohlone College parking lot. For the Sunol Regional Wilderness trail head, take the Calaveras Road Exit from Interstate 680. Turn east on Calaveras and then go left on Geary Road, which goes into the park. Sign in and out at trail heads. Mission Peak and the approaches are under the jurisdiction of the East Bay Regional Park District .