State Licensed Public and Private Ferry Provider. View our COVID-19 Emergency Plan.





Founded by local Marin County residents, Tideline is invested in the life and maintenance of the beautiful San Francisco Bay and the life that it supports. Tideline believes that we all have a responsibility to the water, the native species who inhabit the area, and the communities who depend on the Bay. From how we outfit our boats to the partnerships we seek, we’re invested in ongoing sustainability and eco-conscious solutions.


Our vessels are vinyl wrapped rather than painted, minimizing our environmental footprint by not using fresh water for cleaning


Tideline boats can serve close to 90% of the Bay area without the need for disruptive dredging.


All auxiliary components onboard are powered by batteries and an inverter allowing for more efficient use of our engines.


Whatever your occasion, our on-demand service can take you and your guests around the San Francisco Bay area.

Our Fleet

Osprey & Heron

Osprey and Heron were built to endure aggressive sea conditions with the agility to provide a comfortable ride. They are much wider than most commercial vessels of the same size, creating added stability and giving riders ample interior and exterior space. The “deadrise” hull construction is not only great for the open seas, as well as the underbody minimizes underwater wake distribution thus lessening our impact on the sensitive ecosystem along our silted seabed.

Both vessels are USCG inspected for 40 passengers and crew for commercial operation within and outside the San Francisco Bay up to 35nm (nautical miles). All USCG required documentation is on display on board for your viewing


Built originally to service the Boston Harbor ferry service, “Peregrine” is a 70’ Lydia commercially inspected vessel for up to 147 passengers.  In 2015, “Peregrine” went under a major modification and retrofit which puts her in a class unto herself. With zero speed stabilizers, dynamic positioning for incredible maneuverability and a modern layout, she is the new standard in maritime passenger service in the San Francisco Bay, and we look forward to enjoying her.