Sausalito is a city in southern Marin at the base of the Golden Gate Bridge across the straight from San Francisco. It’s known for its Richardson Bay houseboat enclaves, built by artist squatters after WWII. The U.S. Army Corps of Engineers’ Bay Model Visitor Center has a functioning 3D hydraulic model of the Bay Area, plus exhibits about the area's waterways. SF Bay Adventures & Schooner Freda B also departs from Sausalito for an exciting sail day on the bay!
For visitor information and maps on the Golden Gate National Recreation Area and Headlands stop by the Marin Headlands Visitor Center at Fort Barry in Sausalito.  Within Marin Headlands, is also home to NatureBridge and Point Bonita YMCA, both offering outdoor education and wellness retreats for all ages.  And to feel like you are walking on water, don't forget to check out Point Bonita Lighthouse, which has an intesting history and is still active today. 

Tiburon is an incorporated town in Marin and is located on the Tiburon Peninsula, which reaches south into the San Francisco Bay. The smaller city of Belvedere occupies the south-west part of the peninsula and is contiguous with Tiburon. The Estuary & Ocean Science Center is San Francisco State University’s marine and estuarine research facility situated on 34 acres of Tiburon's bayfront property. The Bay Conference Center is an ideal setting for meetings, retreats, and conferences, convenient for people who want to get away from it all. The Tiburon-Angel Island Ferry is the perfect way to get out on the bay or to explore the history on Angel Island. From Tiburon, you can also charter The Tamalpais, where you get lots of options. From an elegant, full-service water taxi to San Francisco or Jack London Square to an all-day excursion out to the Farallones.