Tri-Canyon Mellow Group Mountain Bike Ride. Meet Phil Young at Karl Strauss Brewing Company, 5985 Santa Fe Street, Pacific Beach, 92109 for this moderate 15 to 20 mile mountain bike ride through Rose and San Clemente Canyons. There are several regroups planned along the way so we all stay together. Park on the street. Bring water. Rain cancels. Helmet mandatory. Minimum age 18 years old. This is a joint San Diego Wheelmen ride.