Access to the island is by private boat or public ferry from San Francisco, Tiburon or Vallejo. Ferry services are reduced during the winter.
Bicycles can be brought to the island on the ferry and used on the island's main roads. Bikes and Segways can also be rented. Dogs are not allowed. Roller skates and skateboards are prohibited. No wood fires are allowed but there are designated barbecue and picnic areas available to use. A few campsites are also available for reservation. Night travel on the island is prohibited in some areas for reasons of park security and public safety
