4.7
(122)
1,638
hikers
16
hikes
Hikes in Calero County Park explore the eastern foothills of the Santa Cruz Mountains. The park's terrain is a mix of rolling grasslands, shaded oak woodlands, and trails that run alongside the Calero Reservoir. The area is also known for its serpentine soil, which supports a variety of native plants and wildflowers in the spring.
Last updated: April 26, 2026
4.7
(3)
28
hikers
6.75km
01:58
180m
160m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
2
hikers
4.48km
01:17
150m
30m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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4.0
(2)
30
hikers
13.8km
03:47
220m
220m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(3)
29
hikers
13.1km
03:58
450m
450m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
14
hikers
10.9km
03:15
330m
330m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Located right by the parking area you can find some additional info before heading out on your ride.
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Very close to the Calero Reservoir, with beautiful views of the mountains.
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From the high knoll you get a 360 degree view of all the South Bay. Wildflowers are abundant in the spring.
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Los Cerritos Pond is just off the side of the Oak Cove Trail and is a great spot for a pit-stop during your ride. You can get right up next to the banks of the water, or you can hang out under the shade trees closer to the main trail.
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From the high knoll you get a 360 degree view of all the South Bay. Wildflowers are abundant in the spring.
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This north entrance to the Calero County Park has parking and restrooms. It connects to a variety of well-marked trails to begin your hike from as well.
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This short spur off the Lisa Killough Trail leads ends at a wonderful lookout with some picnic tables. It's a great spot to stop and enjoy the view!
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True to its name, Los Cerritos ("little hills") Pond is ringed by hills. You'll find a great network of looping walking trails here, and from March through May the wildflowers here are spectacular. Plan to be without shade for long stretches of your run.
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Yes, dogs are permitted on a leash on the Bald Peaks Trail and all other trails located north of it. Please ensure you bring water for your dog and clean up after them to help keep the park beautiful.
Spring is the best season for wildflower viewing in Calero County Park. The park's unique serpentine soil supports a spectacular display of native flowers, including California poppies and buttercups. The Serpentine Loop Trail is particularly well-known for its vibrant floral carpets during this time.
Yes, the park offers several easier trails suitable for families. A good option is the Hiking loop from Almaden Valley. This 4.4-mile (7 km) walk has minimal elevation gain and provides a pleasant introduction to the area's oak woodlands and grasslands.
While access to the main backcountry hiking trails is generally free, there may be fees associated with parking, especially near the reservoir area or for specific activities. It's always a good idea to bring some cash, just in case.
Calero County Park is open year-round for visitors from 8:00 a.m. until sunset. The gates are locked in the evening, so be sure to plan your hike to finish with enough time to return to your vehicle.
Reaching the trailheads at Calero County Park via public transportation is difficult. The park is located in a more remote area of San Jose, and the most practical way to get there is by car.
The park's diverse habitats, including oak woodlands, chaparral, and grasslands, support a variety of wildlife. It's an excellent location for birdwatching, where you might spot woodpeckers, California Thrashers, and grebes on the reservoir. Keep an eye out for deer and other small mammals along the trails.
The park has an excellent network of loop trails. For a moderately challenging route that explores the park's interior, consider the Bald Peaks loop — Rancho Canada del Oro Open Space Preserve. This 8.1-mile (13.1 km) circuit offers great views and a good workout.
The area is highly rated by the komoot community, with an average score of 4.7 out of 5 stars. Hikers frequently praise the park's well-maintained trails, beautiful rolling hills, and the sense of tranquility and solitude, as it tends to be less crowded than other nearby parks.
There are over 15 designated hiking trails within Calero County Park, covering nearly 19 miles of terrain in the backcountry. These routes range from easy strolls to challenging climbs, offering options for all fitness levels.
There are no reliable water sources available on the backcountry trails. The park's climate can be hot and dry, especially in the summer, so it is essential to carry all the water you will need for your entire hike.


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