William R Bradley Park
Park
33 acres1.5 mi of trail
Dog rules not recorded
Directionsto the parking lot
Photo: Taylorj661 · Public domainAOutdoors
Outdoors in San Marcos
San Marcos has 64 miles of mapped trails, 2.6 for every square mile of land
15% of San Marcos’ land is conserved, about 2,343 acres. The biggest trail networks: William R Bradley Park (1.5 mi), Sunset Park (1.2 mi), San Elijo Hills Park (0.8 mi). 88% of residents live within a half mile of a park.
Ahead of 85% of U.S. towns · #230 of 847 in California. What drives it
Conserved land
15%
2,343 acres · of 24.6 sq mi of land
Trails
64 mi
2.6 per sq mi of land
Park land
732 ac
7.7 acres per 1,000 residents
Near a park
88%
of residents within ½ mile
Bike routes
102 mi
72 mi lanes · 29 mi paths
Highest peak
1,680 ft
Franks Peak
Lakes & rivers
3
What kind of outdoors town is San Marcos?
Read from the map. The page puts what stands out first.
Outdoors grade
How much outdoors does San Marcos have?
On conserved land, trails, park land and how close residents live to a park, San Marcos is ahead of 85% of U.S. towns, #230 of 847 in California. Trail miles hold the grade up; park acres per resident pull it down.
A
OutdoorsA character grade: shown, never part of San Marcos’ overall grade.
Conserved land15% of the land · typical CA town 4% · U.S. 4%A−Trails2.6 miles of mapped trail per square mile of land (64 mi) · CA 0.9 · U.S. 0.4A+Park land7.7 acres of park per 1,000 residents (732 acres) · CA 5 · U.S. 13C+Parks close to home88% of residents within a half mile of a park · CA 91% · U.S. 72%B+
All U.S. towns we grade (21,298)Ahead of 85%
LessMore
California towns of 2,500+ (847)Ahead of 73%
How sure. Graded on any three of the four inputs instead, the letter would range from B+ to A. Trails and many small parks come from OpenStreetMap, mapped by volunteers, so coverage varies from town to town; the half mile is a straight line from each census block, so a river or highway in the way isn’t counted against it.
PAD-US, OpenStreetMap (© OpenStreetMap contributors), Census 2025 Gazetteer and 2020 blocks; details in Sources below. How TownRatings grades the outdoors →
The map
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
Easements protect land from building but are usually private.© OpenStreetMap contributors · USGS PAD-US
Places to walk
Pick a walk
The longest trail network is William R Bradley Park, with 1.5 miles. Directions go to the nearest trailhead or public parking.
Montiel Dog Park
Park
8 acres0.4 mi of trail
Dog rules not recorded
No trailhead mapped yet
All 27 parks & preserves
William R Bradley Park33 acres · 1.5 mi of trail
DirectionsSunset Park17 acres · 1.2 mi of trail
DirectionsSan Elijo Hills Park21 acres · 0.8 mi of trail
DirectionsMontiel Dog Park8 acres · 0.4 mi of trail
Mulberry Park4 acres · 0.3 mi of trail
DirectionsKnob Hill Park3 acres · 0.2 mi of trail
DirectionsDouble Peak Park2 acres · 0.2 mi of trail
DirectionsHollandia Park19 acres · 0.1 mi of trail
DirectionsWoodland Park13 acres · 0.1 mi of trail
DirectionsQuesthaven Park2 acres · 0.1 mi of trail
Quail Valley Park1 acres · 0.1 mi of trail
Foothills Park1 acres · 0.1 mi of trail
Las Abejas Park1 acres · 0.1 mi of trail · City of San Marcos
DirectionsDiscovery Community Park1 acres · 0.1 mi of trail
Walnut Grove Park39 acres
DirectionsJacks Pond Park23 acres
DirectionsCerro de Las Posas Park11 acres
DirectionsConnors Park5 acres
DirectionsSimmons Family Park4 acres
DirectionsRichmar Park2 acres
DirectionsHelen Bougher Memorial Park2 acres
DirectionsValley View Park1 acres · City of San Marcos, Parks and Recreation
San Marcos Sand Court1 acres
DirectionsInnovation Park1 acres
DirectionsDiscovery Creek Childrens Park1 acres
Creek View Park1 acres · City of San Marcos, Parks and Recreation
Fallsview Park1 acres
Who protects it
2,343 conserved acres
15% of San Marcos’ land. Who manages San Marcos’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Other or Unknown Local Government1,262 ac
Town or city844 ac
Land trusts & nonprofits470 ac
State fish & wildlife54 ac
Regional Water Districts37 ac
Private owners32 ac
County19 ac
Unknown Easement · 1,433 acPrivate Conservation · 438 acLocal Recreation Area · 405 acLocal Park · 352 acConservation Easement · 52 ac
Good to know
Conserved doesn’t always mean open to visitors. 1,125 acres are conservation easements, usually private land. The walks above are places people visit.
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Rancho La Costa Preserve Private Conservation | Land trusts & nonprofits | 298 | Open |
| Discovery Lake Park and Open Space Local Recreation Area | Town or city | 160 | Open |
| Land Pres/Mitigation Bank - The Environmental Trust Private Conservation | Land trusts & nonprofits | 140 | Closed |
| City of San Marcos Open Space Local Recreation Area | Town or city | 118 | Open |
| Walnut Grove Park Local Park | Town or city | 85 | Open |
| San Marcos Creek Open Space Local Recreation Area | Town or city | 47 | Open |
| Bradley Park Local Park | Town or city | 34 | Open |
| Vallecitos Water District Open Space Local Recreation Area | Regional Water Districts | 32 | Closed |
| La Moree Park Local Park | Town or city | 30 | Closed |
| Hollandia Park Local Park | Town or city | 30 | Open |
5 smaller protected places aren’t shown.
Things to do
75 places to go in San Marcos
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Public pools in San Marcos
Woodland Park PoolIn Woodland Park
DirectionsPlaygrounds in San Marcos
56 playgrounds are on OpenStreetMap in all; the list shows named ones from the first 30.
Dog parks in San Marcos
Big Dog AreaIn Hollandia Park
DirectionsHollandia Dog ParkIn Hollandia Park
DirectionsMontiel Dog ParkIn Montiel Dog Park
DirectionsSan Elijo Hills Dog ParkIn San Elijo Hills Park
DirectionsSmall Dog AreaIn Hollandia Park
DirectionsPlus 1 dog park without a name on the map. Tap “Show all on map” to see it.
Peaks in San Marcos
Franks Peak1,680 ft elevation
DirectionsDouble Peak1,627 ft elevation · In Double Peak Park
DirectionsCerro de las Posas1,342 ft elevation
Directions13021,302 ft elevation
DirectionsPicnic areas in San Marcos
5 picnic areas without a name on the map. Tap “Show all on map” to see them.
Community gardens in San Marcos
3 community gardens without a name on the map.
Trails & water
5 named trails and 3 lakes & rivers
Named trails
Open to bikes · 5.1 miUnpaved · 18.0 mi
Cerro De Las Posas Ridgeline Trail1.5 mi
Make A Wish Trail0.8 mi
Garden Trail0.5 mi
Gnatcatcher Trail0.4 mi
Craven Footpath0.1 mi
Lakes & rivers tap for directions
Biking & sports
102 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
72 mi
painted or protected bike lanes
29 mi
off-road bike paths
1.7 mi
shoulders & shared lanes
Courts & fields
75Basketball
46Tennis
26Baseball
13Soccer
7Tracks
7Volleyball
4Football
3Beach volleyball
Includes school and college facilities, which aren’t always open to the public.
When to get out
The best walking months in San Marcos: April to August
NOAA’s 1991–2020 normals for the town and the daylight at its latitude. Outlined months have long days, highs of 59 to 86 °F and little rain for the place.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.2 | 11.0 | 11.9 | 13.0 | 13.9 | 14.3 | 14.1 | 13.4 | 12.3 | 11.3 | 10.4 | 10.0 |
| High (°F) | 67 | 67 | 68 | 71 | 73 | 77 | 82 | 85 | 83 | 78 | 73 | 67 |
| Rain (in) | 2.5 | 2.8 | 2.1 | 0.8 | 0.3 | 0.1 | 0.1 | 0.0 | 0.1 | 0.6 | 1.0 | 1.9 |
August is the driest month (under 0.1 in) and the warmest (highs of 85 °F). 2.8 inches fall in February, the wettest month. The climate in San Marcos →
Next door
San Marcos and its neighbors
Tap a town to see its outdoors.
Carlsbad135 miEncinitas84 miSan Marcos64 miEscondido53 miVista25 miHarmony Grove12 miElfin Forest12 miLake San Marcos7.1 mi
| Town | Conserved of land | Trail mi per sq mi | Park acres per 1,000 | Near a park ½ mile | Outdoors |
|---|---|---|---|---|---|
| San Marcos | 15% | 2.6 | 8 | 88% | A |
| Escondido | 25% | 1.4 | 11 | 74% | A− |
| Carlsbad | 31% | 3.6 | 24 | 90% | A+ |
| Vista | 7% | 1.3 | 7 | 75% | B+ |
| Lake San Marcos | 8% | 4.2 | under 1 | 51% | B |
| Harmony Grove | 31% | 3.9 | 26 | 98% | A+ |
| Elfin Forest | — not graded: under 1,000 residents or part of its town | ||||
| Encinitas | 20% | 4.4 | 20 | 99% | A+ |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in San Marcos
Where can I hike in San Marcos?
The longest trail networks: William R Bradley Park, 1.5 miles; Sunset Park, 1.2 miles; San Elijo Hills Park, 0.8 miles; Montiel Dog Park, 0.4 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of San Marcos is conserved land?
15% of its land, against a typical 4% for a California town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on San Marcos’ trails?
William R Bradley Park and Sunset Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in San Marcos?
102 miles of bike routes are on the map: 72 of painted or protected lanes, 29 of off-road paths and 1.7 of shoulders and shared lanes.
Is there public land near San Marcos?
27,060 acres of parks and open public land lie inside San Marcos or within 10 miles of it (PAD-US), 732 of them inside the city line.
How much outdoors does San Marcos have?
Ahead of 85% of U.S. towns on the Outdoors grade, #230 of 847 in California. The grade combines the share of land that is conserved, miles of mapped trail per square mile of land, park acres per 1,000 residents and the share of residents within a half mile of a park. It’s a character grade, so it isn’t part of the overall grade. How it works.
Trail talk
Conditions, parking and favorite walks from San Marcos neighbors.
Share a tip
Sources
Where this page comes from
Conserved and public land: USGS Protected Areas Database of the United States (PAD-US), service updated July 2026. Parks, trails, playgrounds, beaches and other places: OpenStreetMap (© OpenStreetMap contributors, ODbL), map data as of 2026-10-28. Land and water area: Census 2025 Gazetteer. Residents near a park: 2020 Census blocks. National Register: National Park Service. How TownRatings grades the outdoors →