"Relive the historic occasion of the only U.S. President to visit NOPA and then take a spin and give a nod to six other Chief Executives along our route into Golden Gate Park, through the Presidio, and over the Golden Gate Bridge. Two-hour ride with mild to moderate climbs; all levels welcome. Presidential attire encouraged. […]

"Cycle through scenery, immerse in history on this five-mile, moderate bicycle ride. A unique program in a unique national park led by Ranger James Osborne. Bike and helmet are required."

"Experience the National Parks bordering the Golden Gate. Join Ranger James Osborne for this fun and strenuous 12-mile loop bike ride that begins in the Presidio, spans the Golden Gate Bridge, then descends into the peaceful valley in the Marin Headlands. You will gain a unique perspective on the Bay Area Ridge Trail and the Golden […]

"Experience the National Parks through a fun and strenuous 12-mile loop bike ride that begins in the Presidio, spans the Golden Gate Bridge, then descends into the peaceful valley in the Marin Headlands. Lead by SFBC member and Ranger James Osborne. For experienced riders with hybrid bikes; 10 miles paved & 2 miles dirt trail."

From SFBC: Experience National Parks and the Bay Area Ridge Trail on a strenuous 12-mile loop that begins in the Presidio, spans the Golden Gate Bridge, and descends into the peaceful valley in the Marin Headlands. Lead by SF Bicycle Coalition member and Ranger James Osborne. For experienced riders with hybrid bikes;10 miles paved and […]

"Cycle through scenery and immerse yourself in history on this five-mile, moderate bike ride lead by SFBC member and Ranger James Osborne."