Flat to gently rolling hills. Total elevation gain less than 200 feet. Leisurely pace.
Steeper or more frequent uphill grades. Total elevation gain 200 to 600 feet. Leisurely to moderate pace.
Steep hills or long distances. Total elevation gain greater than 600 feet. Moderate to vigorous pace.
For all hikes, wear boots or sturdy walking shoes appropriate for rugged trails.
Slow, leisurely pace, minimal climbing, and multiple stops to observe nature. Includes a natural history component that is provided by the docents during the rest stops.
Outings include demonstration and practice emphasizing trail etiquette and techniques required for dirt riding followed by a 5- to 7-mile ride on fire roads and single-track trails, with occasional natural history stops. Riders should be in good physical condition to perform climbs and descents. Includes a natural history component that is provided by the docents during the rest stops.
Intended for participants with dirt single-track riding experience; able to climb and descend steep and moderately-rough trails. Recreational ride at a moderate/brisk pace, 8+ miles on a wide range of fire roads and single-track trails. For experienced riders in very good physical condition with good endurance. Includes a natural history component that is provided by the docents during the rest stops.
Intended for participants with dirt single-track riding experience; competent at climbing and descending steep and rough trails. Moderate to fast pace, 10+ mile ride on a wide variety of trail conditions. For experienced riders with a high level of physical fitness and excellent endurance. Advanced rides develop and improve mountain bike skills — any natural history discussion stops are secondary to the overall riding experience.
Bicyclists must wear helmets, and bikes must be in good working condition. Participants must be very familiar with the operation of gears and brakes.
Mountain bikes are strongly recommended for all except the Easy Nature Rides.
Heavy rain within two days prior to a mountain bike ride cancels the activity.
Reservations for activities requiring them can be made online (preferred) or by phone. Use the Register button at the bottom of the activity listing. For phone reservations call 650-691-2150 (enter 2). Group reservations are limited to a maximum of four people. Reservations open two weeks prior to activity date.
Children must be accompanied and supervised by an adult. See activity descriptions for any additional information.
Stroller accessible. Jogger-type suggested.
Bring a lunch, dinner, or snack as appropriate.
Well-behaved and socialized dogs are allowed and must be controlled on a maximum six-foot leash.
Introductory level and easy to moderate activities for people of various ages. Some activities have a health and wellness focus. Midpen is part of the Healthy Parks Healthy People: Bay Area Collaborative.