Arrange all your tackle together at the Conservatory of Flowers and cast away north toward the Marin Headlands. There’s a place to grab some baked goods on Arguello on your way up to the Golden Gate Bridge (or on your way home).
Wiggle through the Presidio and cross the bridge - it can be a wild ride navigating all the pedestrians and selfie sticks. Once you’re on the Marin side, pedal up Hawk Hill to the circle and hit your first section of downhill dirt. The Coastal Trail is like a rollercoaster! Tons of fun, but be careful - there are some loose gravel sections and water bars that can either act as a jump or a trail hazard. At the bottom of the hill, cross the paved road and return to the dirt. Bobcat Trail will climb steadily up and around the ridges of the Marin Headlands. Be sure to look around you as you climb because the views are fantastic!
When you reach the top of Bobcat, you’ll veer right onto Marincello Trail and descend quickly into the Tennessee Valley. This was once all slated to be a huge housing development, if you can believe it - 30,000 people in apartment towers, which is hard to picture riding through it today. Keep your eyes peeled for those same jumps and/or hazards which can easily buck you off your mechanized steed if you aren’t paying attention. When you reach the bottom, head down Tennessee Valley Road toward Tam Junction. Hop onto the wooden bike paths which link you back up with the heavily trafficked Mill Valley-Sausalito path. Turn right and steer South, back toward Sausalito. Soon after, you’ll begin the sharp climb back up to the Golden Gate Bridge, where you’ll cruise back toward the city and your well-deserved post-ride meal.