Take a 30-mile round trip thru wooded Marin lake region. Take off from Mollie Stone's Market parking lot. Pick up deli food at Mollie Stone's Market and then bike up and up to picnic at Alpine Dam overlooking Alpine Lake. Then straight back downhill and ride the flat roads back to Mollie Stone's Market in Greenbrae. https://www.google.com/maps/dir/Larkspur+Ferry+Terminal,+Larkspur,+CA/Alpine+Dam,+Bolinas,+CA+94924/Larkspur+Ferry+Terminal,+Larkspur,+CA/@37.9635179,-122.6087766,12310m/data=!3m2!1