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San Marcos, California

Looking for the best hiking in San Marcos? We've got you covered with the top trails, trips, hiking, backpacking, camping and more around San Marcos. The detailed guides, photos, and reviews are all submitted by the Outbound community.

Top Hiking Spots in and near San Marcos

  • Palomar Mountain, California

    Hike to Palomar Observatory from the Palomar Observatory Campground

    5.0
    4.4 mi / 718 ft gain
    Situated in the Palomar Mountains of Cleveland National Forest, Palomar Observatory Campground offers many amenities for enjoyable camping and exploring the area.  A portion of the campsites loop has been cleared of trees with level cement pads to allow campers to set up their own telescopes.  Dr...
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  • San Diego, California

    La Jolla Coast Walk Trail

    5.0
    2.32 mi / 295 ft gain
    La Jolla Coast Walk is a beautiful coastline trail, but is a bit of a heavily trafficked tourist trail. The hike can be started and ended at 3 separate locations. The trail is easily accessible with a small parking lot and tons of restaurants nearby.  The trail begins near another popular touris...
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  • Ramona, California

    Explore the Sutherland Dam

    2.0
    1 mi
    Once your on Sutherland Dam Rd, follow it until your right next to the dam. Park on the side of the road where you see a small turn-out. Walk down to the side of the dam and drop down onto the concrete flooring of the dam. Walk on-top where allowed, and check out the views of the lake and the mo...
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  • Santee, California

    Oak Canyon in Mission Trails Regional Park

    5.0
    3.22 mi / 249 ft gain
    Starting on Father Junipero Serra Trail, drive 0.7 miles west to the Old Mission Dam parking lot on the left. The park closes the gates at 7pm, so make sure to park early, or plan your hike in such a way that you don't get locked in! If you think you'll need longer, you can park out on the main r...
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  • Santee, California

    Kwaay Paay Trail

    2.4 mi / 846 ft gain
    Park your car in the small gravel parking lot at the southwest corner of Father Junipero Serra Trail and Bushy Hill Drive (this is especially important if you plan to take the sunset hike, so you'll be outside the locked park gate when you descend). There will be other hikers parked there, but I'...
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  • San Diego, California

    Mission Trails 5 Peaks

    15 mi
    The 15-ish mile route we took made it a great workout, but it didn’t crush us. We left the apartment at 6 am and were back home with plenty of time to prep cook and eat a big dinner before 5 pm. Although I completed the hike in 1 day(and I highly recommend it)many people completed each hike indi...
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  • San Diego, California

    South Fortuna Mountain

    5.0
    4.59 mi / 997 ft gain
    Hiking at sunset/night is a great way to beat both the heat and the crowds. On a clear day, you can see from Mexico to Catalina Island! If you stay long enough, you can see all of San Diego's city lights turn on, or the marine layer fog creeps into the canyons. South Fortuna Peak is part of Miss...
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  • Lakeside, California

    Hike the Oakoasis Open Space Preserve

    2.5 mi / 300 ft gain
    Starting at the trail-head, head down towards the oak-lined ravine marking the beginning of the hike. With trees already growing back from the 2003 fire, these sections of the trail are nice and shady, and quite relaxing. About 1 mile in you will start to see the San Vicente Reservoir to your lef...
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  • Lakeside, California

    Hike El Cajon Mountain

    4.5
    12 mi / 4100 ft gain
    This challenging trek is a great way to get in shape for that spring or summer trip to the Sierras. You may have heard others tell you how tough the hike is and they're not kidding. You'll be gaining 4100 feet over the 12 miles to the peak and back. If you have the time and the energy, you should...
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  • Santee, California

    Cowles Mountain via Big Rock Trail

    4.0
    4.86 mi / 1207 ft gain
    Starting somewhat near sea-level, Cowles Mountain via the Big Rock Trail climbs about 1000 ft in elevation.  This trail is about 5 miles total, out and back.  Arrive at Big Rock park which has good parking.  At the park you will walk to the left of the tennis courts past the limits (the fence) of...
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  • San Diego, California

    Visitor Center Loop Trail

    5.0
    1.46 mi / 148 ft gain
    The Visitor Center Loop Trail is a 1.4 mile hike in San Diego that features river views and allows dogs.The Visitor Center Loop Trail is a well maintained, quick hike with shady spots scattered along the path and open year-round. This trail is great for kids and dog owners. There is a great netwo...
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  • Santee, California

    Cowles Mountain via Big Rock Road

    4.5
    4.32 mi / 1109 ft gain
    Start by plugging 8125 Arlette St, Santee, CA into your GPS. This takes you to Big Rock Park, a convenient parking spot for the Cowles Hike. From here you want to walk through the park, and around the right side of the tennis court. This will take you to the fenced entrance to the hike. Head sout...
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  • Santee, California

    Crystal Cave

    4.0
    0.46 mi / 59 ft gain
    Starting at 8100 Mesa road, you will see parking along the side of the road in a few places, take advantage where you find it.  Pass over the trail gate that marks the start of the journey. This will be a quick trip, as the total distance is less than a mile out and back. Head a quarter mile or ...
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  • San Diego, California

    Pyles Peak

    5.0
    6.03 mi / 1706 ft gain
    Most people who live in San Diego have heard of, if not hiked, Cowles Mountain. At 1591 ft., Cowles is the highest peak in the city of San Diego. It's a hugely popular destination for day hikers and trail runners looking to get in a little trail time and take in the 360 degree views the summit h...
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  • Aguanga, California

    Vail Lake Loop

    4.0
    7.25 mi / 922 ft gain
    Vail Lake Loop is a loop trail that takes you by a lake located near Temecula, California.
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  • Temecula, California

    Dripping Springs Trail

    4.0
    13.68 mi / 3287 ft gain
    The trail immediately begins to climb out of the campground on a well-graded incline. The next mile contains some climbing leading to a set of switchbacks. A long strenuous climb ensues until the 3200' elevation is reached. The trail then makes an easy southward traverse to the basin before resum...
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