Come out to help fix up our amazing trails on Saturday, March 21, when the Conejo Open Space Conservation Agency rangers will host the Annual Spring Trail Work Day! The work will be on the Whole Access and Los Robles Trails. The thank-you lunch and gift give-away for volunteers at noon are courtesy of COSF. Please register online so we Read more
For our Spring ‘Four Seasons’ contest the challenge subject is sunlight beaming through Conejo Valley trees. Deadline for entry is May 31, 2026. If you would like to enter future contests, here are the rules: Every season, we’ll identify a specific phenomenon or item (e.g., “an oak tree”) for you to find within the Conejo Open Space. As long as Read more
On March 4 at 7:00 p.m., Irene Rowland, founder of Forest Needle Wellness and a certified forest therapy guide, will kick off our 2026 quarterly speaker series focused on nature and mental wellbeing. Her live online presentation via Zoom, “Forest Bathing and Healing Landscapes: A Guide to Mindful Nature Connection,” will examine the science behind the Japanese practice of shinrin-yoku—”forest bathing”—which originated there Read more
Here’s your chance to explore some of the best trails in the Conejo Open Space that many people are not familiar with! From March 1st through May 31st the Conejo Open Space Conservation Agency (COSCA) is challenging mountain bikers, hikers, trail runners and equestrians of all ages to try out some trails that may be new to them. See if Read more
Highlights This easy route of only 1.6 miles with about 200′ of climbing is very pretty, meandering through grassy meadows and groves of oak trees. Windmill Canyon Trail is one of the segments of the 2026 Conejo Open Space Challenge (https://cosf.org/challenge) Description This is a really easy and pretty hike, suitable for beginners. There is no street parking at the Read more
Highlights Because of the amount of climbing, this is a more difficult trail, but there will almost always be a great view. There are two side trails along the way to get you to overlooks that have even better views than the main trail./ Saddle Pass Trail is one of the segments of the 2026 Conejo Open Space Challenge (https://cosf.org/challenge). Read more
Highlights Little Sandstone Trail passes through what could be some of the most beautiful sandstone rock formations in the county The “Mini Tripeaks” on Little Sandstone Trail is a great place to explore the rock formations, and to stop for a snack or lunch Hidden Meadow Trail is really fun on a mountain bike Hidden Meadow Trail has a great Read more
The Conejo Open Space Foundation is deeply grateful to the many supporters of our mission to preserve, promote, and protect natural open spaces through community education and involvement. As COSF finishes our 30th anniversary holiday season, we celebrate both what we’ve accomplished together and urge you to consider one final tax-deductible gift for 2025. Your donation will support programs that: Read more
Highlights This moderately strenuous route covers the entire trail and also Thistle Trail for a shortcut to get back to the beginning. The south leg traverses a ridgeline that is high enough to not only overlook the neighborhoods immediately to the south, but also the farther away neighborhoods of Wildwood. For mountain bikers, the north leg is a must-ride trail. Read more
The winter edition of the Conejo Open Space Foundation newsletter has been posted. In this edition… Plantpalooza summary : “Raptors in Peril” recording ready for viewing : Newest COSCA Ranger Brittany Schiefer : Spotlight on Brian Stark, COSCA Administrator : High school scholarship announcement : Open Space Appreciation Hike schedule : and Much More! View our Winter Conejo Open Space Read more