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Routes
Hiking trails & Routes
United States
California
San Diego County
San Marcos

San Marcos Hills Loop

Easy

3.3

(13)

31

hikers

San Marcos Hills Loop

00:50

2.93km

70m

Hiking

This easy 1.8-mile hike in San Marcos Hills offers lake views and a glimpse of the Pacific Ocean.

Last updated: February 26, 2026

Waypoints

A

Discovery Trail

Highlight • Trail

The discovery trail loops around Discovery Lake and is a serene place to ride your bike. On a completely calm day, the mountains reflecting in the water make you feel like you're miles away from the city.

Tip by

1

175 m

Discovery Lake and Trails

Highlight • Lake

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 …

Tip by

2

1.26 km

San Elijo Hills Ocean View

Highlight • Viewpoint

A view of the Pacific Ocean from the San Elijo Hills.

Tip by

B

2.93 km

End point

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Way Types & Surfaces

Way Types

2.34 km

418 m

168 m

Surfaces

1.68 km

841 m

352 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (250 m)

Lowest point (190 m)

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Weather

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Today

Wednesday 6 May

19°C

10°C

0 %

Additional weather tips

Max wind speed: 17.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to access the San Marcos Hills Loop?

The San Marcos Hills Loop is primarily located around Discovery Lake. You can typically find parking available near the Discovery Lake area, which often includes amenities like restrooms and picnic tables, making it a convenient starting point.

Are there any entrance fees or permits required for this trail?

No, there are no entrance fees or permits required to hike the San Marcos Hills Loop or to access the trails around Discovery Lake. The area is generally open to the public.

Is the San Marcos Hills Loop suitable for families with children?

Yes, this loop is considered easy and is very suitable for families with children. Its minimal elevation gain and well-maintained paths make it a pleasant option for leisurely strolls and family outings. The nearby Discovery Lake area also offers playgrounds and picnic spots.

What kind of terrain can I expect on the San Marcos Hills Loop?

The terrain around Discovery Lake is generally diverse but manageable. You can expect a mix of paved sections and dirt paths. The area features coastal sage scrub, chaparral, and some native trees like sycamores and coast live oaks.

What are the main points of interest along the San Marcos Hills Loop?

Along the route, you'll experience the pleasant surroundings of Discovery Lake and Trails. The loop also incorporates sections of the Discovery Trail, offering scenic views. While this specific easy loop doesn't reach the highest peaks, you might catch glimpses of the broader San Marcos Hills landscape.

What is the best time of year to hike this loop?

The San Marcos Hills Loop is enjoyable year-round, but spring is particularly beautiful due to seasonal wildflower blooms that add vibrant colors to the landscape. Fall and winter also offer pleasant hiking conditions with cooler temperatures. Summers can be warm, so early mornings or late afternoons are best during those months.

Is the San Marcos Hills Loop dog-friendly?

Yes, the trails in the San Marcos Hills area, including this loop, are generally dog-friendly. Please ensure your dog is kept on a leash and that you clean up after them to maintain the natural beauty for all visitors.

What amenities are available near the trailhead?

Near the Discovery Lake trailhead, you'll find several amenities that enhance your visit. These often include playgrounds for children, picnic tables for a post-hike meal, and public restrooms. These facilities make it a convenient spot for family outings.

What wildlife or plants might I see on the trail?

Around Discovery Lake, you might spot local wildlife such as ducks and herons. The surrounding natural areas feature diverse vegetation, including coastal sage scrub, chaparral, and native trees like sycamores, olive trees, and California-native coast live oaks. In spring, wildflowers add a splash of color.

What should I bring for a hike on the San Marcos Hills Loop?

Given its easy difficulty and shorter distance, you'll want to bring comfortable walking shoes, water, and sun protection (hat, sunscreen). If you're hiking with a dog, remember a leash and waste bags. For families, snacks and picnic supplies are a good idea to enjoy the amenities near Discovery Lake.

How long does it typically take to complete the San Marcos Hills Loop?

This easy loop typically takes around 50 minutes to complete at a moderate pace. Its relatively short distance and minimal elevation gain make it a quick and enjoyable walk.

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