The best walks and hikes in Sierra Azul Open Space Preserve (Closed Areas)

Certain areas, such as Cathedral Oaks and Rancho de Guadalupe, are closed to the public because they are part of a long-term plan by the Midpeninsula Regional Open Space District. These sections are awaiting future trail planning and infrastructure development to ensure they are safe and sustainable for public access. The currently open areas provide extensive and challenging trails.

No, dogs are not permitted in the Sierra Azul Open Space Preserve. This rule is in place to protect the sensitive wildlife habitats and the diverse native plant species found throughout the preserve, including on and around Mount Umunhum.

The Mount Umunhum area is open daily from 7:00 a.m. to sunset. The entrance gate automatically locks in the evening, so it's important to plan your hike to ensure you are back at the parking area and can exit before the preserve closes.

Yes, for a less strenuous outing, consider the Saint Josephs Hill Summit — Saint Josephs Hill Open Space Preserve hike. It's a relatively short and manageable trail that still offers rewarding views, making it a good choice for families or those looking for a quick nature walk.

The terrain is very diverse and rugged. You'll hike through a mix of landscapes, including steep, sunny chaparral-covered slopes, dense bay tree forests, and shaded oak woodlands. The area around Mount Umunhum also features unique serpentine soils which support rare plants.

Absolutely. For a demanding trek, the Ridge Trail loop — Soquel Demonstration State Forest is an excellent choice. This long-distance trail involves significant elevation gain and takes you through dense, remote forest, offering a true wilderness challenge.

There are over 130 different routes to explore in and around the Sierra Azul Open Space Preserve. These range from short, easy walks to strenuous, all-day treks, with the majority being rated as moderate in difficulty.

The trails in this area are highly regarded by the komoot community. Hikers often praise the stunning panoramic views from the peaks, the challenging climbs, and the feeling of being in a true wilderness so close to the city.

Yes, the Priest Rock & Limekiln Trails loop is a popular circular route. It's a moderately difficult hike that features steady climbs through shaded woodlands near the Lexington Reservoir, making for a well-rounded and scenic outing.

The mountain holds deep cultural importance for the Amah Mutsun people, to whom it is a sacred site central to their creation story. Its name means "resting place of the hummingbird." More recently, its summit was the site of the Almaden Air Force Station, a Cold War-era radar facility, and the iconic concrete radar tower base remains a prominent landmark.

Sierra Azul is a rich habitat for a variety of wildlife. While sightings are not guaranteed, the preserve is home to mountain lions, bobcats, deer, and coyotes. It's a prime example of the wilder side of the Santa Cruz Mountains, so always be aware of your surroundings.