Tideline is an official Port of San Francisco water transportation service offering loops, cruises and private charter trips around the San Francisco Bay. As a reservation-based system, we require a minimum of 10 passengers to operate a service. Reservations can be made on our website, by phone or on board. Public service is currently pending CPUC approval with initial service planned between Berkeley and San Francisco. Once approved, we'll be able to post our schedule and offer service without reservations!