Orinda/Crockett/3 Bears Loop BobMay 8, 2008July 1, 2015 BART Friendly, East Bay, Length: 45 - 60 miles, Rides, Terrain: 3000' - + Start and end at the Orinda BART parking lot. Route A: Full loop is 49 miles with 3,700 feet of climbing (Lunch in Crockett) Route B: Several shorter routes are available (refer to the route map) Orinda/Crockett/3 Bears Loop Route Map Lake Chabot Mt. Biking (AKA: Dark-in-da-Park) San Mateo/Pacifica/HMB Loop ← 8:00am San Jose/Almaden Reservoirs Ride Orinda/Crockett/3 Bears Loop →