3.5
(2)
976
runners
60
runs
Jogging around Lake San Marcos offers diverse landscapes and accessible trails for runners. The region features an artificial reservoir with limited walking opportunities directly at the lake, but the broader San Marcos area provides an extensive network of trails. Runners can find challenging routes with significant elevation gain leading to summits like Double Peak, offering panoramic views. The terrain includes a mix of paved sections, rougher singletrack, and natural areas with sycamores, olive trees, and native coast live oaks.
Last updated: June 27, 2026
18
runners
12.8km
01:37
420m
420m
Hard run. Very good fitness required. Mostly accessible paths. Some sure footedness required.
14
runners
12.5km
01:46
500m
510m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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12
runners
22.1km
02:47
740m
740m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
runners
5.59km
00:39
120m
120m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
runners
3.98km
00:25
30m
30m
Easy run. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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Cerro de las Posas Peak in San Elijo Hills offers stunning vistas of the surrounding southern California landscape. This prominent peak attracts runners and hikers with its challenging trails and rewards them with breathtaking views.
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Discovery Lake is the focal point of Discovery Park. There are picnic areas and a restroom near the water, and there are a bunch of trails that weave around the hillside that leave from the lake.
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Double Peak is an exposed mountain with great views. Typical views include Santa Ana Mountains, Camp Pendleton, the Palomar Mountains, Oceanside, Vista, San Marcos, and Escondido. On a very clear day you can see Mt. San Jacinto and Mt. San Gorgonio.
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Double Peak Park marks the top of Double Peak and provides pretty sweet panoramic views from the top of the 1,646-foot summit. The trails reaching the top of the mountain can be pretty tough and are true "mountain trails."
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Discovery Trail circumnavigates Discovery Lake, there is also a small park and community center. Hikes can also start from here to go up to peaks like Double Peak. The park includes a Kiosk, small lake, permanent restrooms, play equipment, picnic shelter and picnic tables.
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Double Peak is an exposed mountain with great views. Typical views include Santa Ana Mountains, Camp Pendleton, the Palomar Mountains, Oceanside, Vista, San Marcos, and Escondido. On a very clear day hikers can see Mt. San Jacinto and Mt. San Gorgonio.
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The Lake San Marcos area offers a diverse range of running routes. You'll find accessible lakeside paths for gentle jogs, as well as more challenging trails with significant elevation gain leading to summits like Double Peak. The terrain varies from paved sections to rougher singletrack, catering to different fitness levels and preferences.
There are over 50 running routes available in the Lake San Marcos region, with 59 total tours recorded. These include options for easy, moderate, and difficult ability levels, ensuring there's a suitable path for every runner.
Yes, for those seeking a gentler run, the Lake San Marcos Village area features a paved, low-grade lakeside loop of approximately 0.5 to 1.5 miles. Additionally, the South Lake Park offers a 1.3-mile loop around South Lake with an accessible dirt path. The broader region also has 9 routes classified as easy.
For a rewarding challenge, consider trails leading to Double Peak Summit. Routes like Double Peak – Double Peak Summit View loop from San Elijo Hills or Discovery Lake – Double Peak Summit View loop from San Marcos offer significant elevation gain and culminate in spectacular 360-degree panoramic views of North County, extending to the Pacific Ocean.
The region boasts several natural features. You can enjoy views of Calavera Lake, a protected wetland ideal for birdwatching. Trails to Double Peak Summit are lined with sycamores, olive trees, and California-native coast live oaks. From the summit, you can also enjoy panoramic views from the Moonlight Beach Overlook.
While specific dog-friendly designations for every route aren't listed, many trails in the wider San Marcos area, especially those in parks and natural open spaces, generally welcome leashed dogs. It's always best to check local signage or park regulations for specific restrictions before heading out with your pet.
The Lake San Marcos area is generally pleasant for running year-round. Spring and fall offer mild temperatures, ideal for longer runs. Summers can be warm, so early morning or late evening runs are recommended to avoid the heat. Winters are typically mild, making it a good option for cooler weather running.
Yes, many of the popular running routes are loops. For instance, the Double Peak – Double Peak Summit View loop from San Elijo Hills and the Double Peak Summit View – Cerro de las Posas loop from Lake San Marcos are excellent circular options for varied terrain and scenic views.
The running routes in Lake San Marcos are highly rated by the komoot community, with an average score of 4.0 stars. Runners often praise the diverse landscapes, from accessible lakeside paths to challenging summit trails, and the rewarding panoramic views from higher elevations.
Yes, parking is generally available at popular trailheads and parks. For example, Discovery Lake is often a starting point for trails leading to Double Peak, and Double Peak Park itself offers parking facilities. Specific parking details can often be found on individual route pages or local park websites.
Generally, permits are not required for jogging on the public trails and park systems in San Marcos. However, it's always a good practice to check for any specific regulations or temporary closures, especially for protected natural areas or private land access.
While direct public transport access to every trailhead might be limited, the City of San Marcos has a public transportation system. You may be able to reach areas near Discovery Lake or other trail networks via bus routes, though some routes might require a short walk or ride to the starting point.


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