SFBC Rec Ride: The Presidio: Self -Sufficient and Sustainable?

From SF Bike Coalition:

2013 is the year our local National Park achieves self-sufficiency. Has the Presidio Trust found a sustainable way to combine history, nature, and commerce? This tour will criss-cross the park's 1,500 acres, including brief off-road segments of the Bay Trail. Ends with a picnic (bring water and food to share).

Free for SF Bicycle Coalition members; $10 donation for non-members; rain cancels rides.