About the Midpeninsula Regional Open Space District

Calendar of Activities

Enjoy the many free Outdoor Activities on Midpeninsula Regional Open Space District preserves. All activities are led by trained volunteer docents and are free of charge. Some activities require reservations. Please refer to the Reservation Information page for full details.

For all activities, heavy rain at the activity location will cancel that activity. In the event of light rain or the threat of rain, the docent will make the decision at the designated meeting time and location.

Show me activities for:



Start Time


09/02/2014 All Around Windy Hill 9:00  am Windy Hill Strenuous Hike
09/03/2014 Explorer Hike: A Hike with a View 10:30  am Saratoga Gap Moderate Hike
09/06/2014 Reservation Required Redwood Oxygen 10:00  am Purisima Creek Redwoods Moderate Hike
09/07/2014 Earthquake Walk 2:00  pm Los Trancos Easy Hike
09/11/2014 Sunrise Hike 7:00  am Pulgas Ridge Moderate Hike
09/12/2014 Reservation Required Nature at Night 5:30  pm Monte Bello Moderate Hike
09/14/2014 Reservation Required Sunday Paleontology: A Walk and Talk 11:00  am Skyline Ridge Easy Hike
09/16/2014 Explore the Interior 10:00  am Long Ridge Strenuous Hike
09/17/2014 Explorer Hike: Lower Windy Hill 10:30  am Windy Hill Moderate Hike
09/19/2014 All About Oaks 10:00  am Monte Bello Moderate Hike
09/19/2014 Happy Friday History Ride 5:00  pm Fremont Older Intermediate Mtn. Bike Ride
09/20/2014 Chaparral on the Hills 10:00  am Skyline Ridge Easy Hike
09/20/2014 Reservation Required Dark Skies at Night 6:30  pm Skyline Ridge Easy Hike
09/21/2014 Enjoy the First Day of Autumn 9:30  am Monte Bello Moderate Hike
09/21/2014 Grizzly Tales 10:00  am Long Ridge Moderate Hike
09/21/2014 Reservation Required Introductory Geocaching Family Hike 10:00  am Los Trancos Easy Hike
09/21/2014 Signs Fall is Approaching 12:30  pm Pulgas Ridge Moderate Hike
09/23/2014 Meet the Oaks 10:00  am Monte Bello Moderate Hike
09/24/2014 Reservation Required Explore Black Mountain Trail 9:00  am Rancho San Antonio Strenuous Hike
09/30/2014 Five Preserve Ramble 10:00  am Skyline Ridge Strenuous Hike

FALL (September, October, November)

Full Outdoor Activities Listing and Schedule

At-a-glance Listing

Special note:

If you have a group of 4 or more people who would like to attend a docent-led activity listed in Outdoor Activities, please contact the Docent Programs Coordinator at (650) 691-1200 to discuss in advance. Other arrangements may need to be considered for your group.

Additional Information

Reservations are required for certain activities. Reservations for a given activity are only accepted within the two-week time period prior to the activity date. The maximum number of people allowed for a group reservation is four (4) people. The online reservation forms activate in the individual listings two weeks prior to the date of the activity.

--Emails and voicemails regarding activities are not monitored after hours or over the weekends, but will be processed the next business day.

--If your plans have changed after you have made a reservation and you are no longer able to attend, please let us know so that we can release your reservation to someone else.

Full Reservation Policies

Additional Information

Easy Hike Easy Hike
Moderate Hike Moderate Hike
Strenuous Hike Strenuous Hike
Easy Nature Ride Easy Nature Ride
Intro Bike Ride Intro Mtn. Bike Ride
Intermediate Bike Ride Intermed Mtn. Bike Ride
Adv Bike Ride Adv Mtn. Bike Ride
Kids Kids
Reservations Required Reservations Required

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Reservation Policies