Marin County, California
1,286 hiking & walking trails · 17parks, recreation areas & campgrounds · 24 cities. Real OpenStreetMap + Recreation.gov data, with a free trail map for every listing.
About Hiking in Marin County, California
Marin County is home to 1,286 mapped hiking trails and 17 federal parks, campgrounds, and recreation areas spread across 24 cities. Trail data is sourced from OpenStreetMap contributors; park and campground info comes from Recreation.gov.
Looking for something specific? Search all trails in Marin County or browse parks. Want to narrow further? Pick a city below to see only that city’s outdoor options.
Trails & Parks in Marin County
Up to 217 pinpoints showing trail and park locations across the county.
Cities in Marin County
Click any city to see trails and parks within it.
Sample Parks in Marin County
Sample Trails in Marin County
Curated Guides for Marin County
Frequently Asked Questions
Are there hiking trails in Marin County, California?
Yes — we have 1,286 mapped hiking and walking trails in Marin County, California, sourced from OpenStreetMap. Browse the full list below, with distance, elevation, and difficulty for each.
What is the most difficult hiking trail in Marin County, California?
7-Eleven near San Rafael is rated hard — the toughest classification among Marin County, California's mapped trails.
What is the best hiking trail in Marin County, California for families?
101 Trail near Novato is one of the best family picks in Marin County, California — easy difficulty, short enough for kids and first-timers. See the full family hiking guide below for more options.
Is there a trail map for Marin County, California?
Each of the 1,286 trails in Marin County, California has its own page with an interactive map, GPS coordinates, and a link to view it on OpenStreetMap — no app or account needed.
What parks and recreation areas are in Marin County, California?
Marin County, California has 17 parks, recreation areas, and federal facilities in our index (6 classified as recreation areas). Each listing includes activities, photos where available, and directions.
Can I go camping in Marin County, California?
Yes — 3 of Marin County, California's parks have mapped campsites, from first-come sites to Recreation.gov reservations. The largest is Haypress Campground with 6 sites. See the full campgrounds guide below for the ranked list.
Where can I find hiking trails and parks near Marin County, California?
Browse all hiking trails, walking trails, parks, and campgrounds across California for more options beyond Marin County, California.
Hiking guides for California
Statewide rankings and guides — useful context for Marin County.
Photo: Joshua EarleThe 10 Longest Hiking Trails in California, Ranked
California's longest mapped hiking trails, ranked by distance with notes on what makes each route worth the commitment.
Photo: Sergei AkulichCalifornia's 10 Most Punishing Trails by Elevation Gain
Steep is hard. These are the ten California trails with the most total elevation gain — quad-burners earned by hard climbing.
Photo: Maddi BazzoccoThe Best Beginner-Friendly Hikes in California
Ten gentle, well-marked California trails perfect for first-time hikers, families, or recovery days.
Photo: Holly MandarichThe 10 Most Challenging Hikes in California
California's ten hardest hikes — expert difficulty, big mileage, or serious exposure. Reserved for experienced hikers.
Photo: Diego LozanoThe Best National Parks & Recreation Areas in California
Federal parks and recreation areas in California ranked by what they actually offer hikers and campers, not just popularity.
Photo: Joshua EarleBest Waterfall Hikes in California: 10 Trails to See Falls Up Close
California's best hikes to named waterfalls — from short family-friendly viewpoints to all-day cascade chasing.