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Best trails in San Marcos

3,236 Reviews
Looking for a great trail near San Marcos, California? AllTrails has 18 great hiking trails, trail running trails, mountain biking trails and more, with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers, and nature lovers like you. If you're looking for the best trails around Palomar Mountain State Park, we've got you covered. You'll also find some great local park options, like Lake Poway Park or El Capitan County Preserve. Ready for some activity? There are 9 moderate trails in San Marcos ranging from 1.8 to 6.4 miles and from 521 to 1,640 feet above sea level. Start checking them out and you'll be out on the trail in no time!
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Map of trails in San Marcos
Top trails (18)
#1 - Double Peak Trail from Discovery Lake
Lakeview Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(875)
Length: 3.9 mi • Est. 2 h 16 m
Double Peak Trail from Discovery Lake is a 3.9 mile heavily trafficked loop trail located near San Marcos, California that offers scenic views and is rated as moderate. The trail offers a number of acShow more
#2 - Copper Creek Trail
San Marcos, California
easyYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray Star(326)
Length: 2.8 mi • Est. 1 h 17 m
Go past the electrical tower almost towards the back of the landfill building. There are a couple of dumpsters. Behind those is where the trail actually starts. Trail is a little over grown in some arShow more
#3 - Discovery Lake to Double Peak
San Marcos, California
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(427)
Length: 4.3 mi • Est. 2 h 25 m
Discovery Lake to Double Peak is a 4.3 mile heavily trafficked out and back trail located near San Marcos, California that features a lake and is rated as moderate. The trail is primarily used for hikShow more
#4 - Abeja Loop Trail
San Marcos, California
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray Star(284)
Length: 2.9 mi • Est. 1 h 43 m
Also known as Bee Loop. Nice loop in the backyard of Santa Fe Hills in San Marcos. The views are great. It is the perfect morning or evening hike. The trail is also used for mountain biking. First foShow more
#5 - Discovery Lake and Hills Loop
Lakeview Park
easyYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(265)
Length: 0.8 mi • Est. 20 m
Discovery Lake and Hills Loop is a 0.8 mile heavily trafficked loop trail located near San Marcos, California that features a lake and is good for all skill levels. The trail offers a number of activiShow more
#6 - Copper Creek Loop
Rancho La Costa Habitat Conservation Area
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(208)
Length: 3.3 mi • Est. 1 h 45 m
Copper Creek Loop is a 3.3 mile heavily trafficked loop trail located near San Marcos, California that features a waterfall and is rated as moderate. The trail is primarily used for hiking, running, aShow more
#7 - The P Trail
San Marcos, California
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray Star(145)
Length: 1.8 mi • Est. 1 h 1 m
The P Trail is a 1.8 mile lightly trafficked loop trail located near San Marcos, California and is rated as moderate. The trail is primarily used for hiking, walking, and running.Show more
#8 - Mule Deer and Fire Trail Loop
Rancho La Costa Habitat Conservation Area
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(87)
Length: 4.5 mi • Est. 2 h 21 m
The Uber Denk Trek! The goal was to hike every path on Denk Mountain. Most of the trails are a good (but generic) workout, but the initial loop around the east side of Denk (Copper Creek) is always Show more
#9 - San Marcos Hills Loop
Lakeview Park
easyYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray Star(77)
Length: 1.8 mi • Est. 54 m
San Marcos Hills Loop is a 1.8 mile moderately trafficked loop trail located near San Marcos, California that features a lake and is good for all skill levels. The trail is primarily used for hiking, Show more
#10 - Double Peak and Ridgeline Trail via Cima Drive
Double Peak Park
hardYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(86)
Length: 10.2 mi • Est. 5 h 25 m
Double Peak and Ridgeline Trail via Cima Drive is a 10.2 mile heavily trafficked loop trail located near San Marcos, California that features beautiful wild flowers and is rated as difficult. The traiShow more
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