Hiking Trails & Parks in Mercer Island, Washington
489 hiking & walking trails and 0parks, recreation areas & campgrounds in Mercer Island, located in King County, Washington. Free trail map for every listing.
About Outdoor Recreation in Mercer Island, Washington
Mercer Island offers 489 mapped hiking trails and 0 federally managed parks within the city or nearby. Located in King County, Washington, it’s a starting point for hikers, campers, and casual nature seekers.
Explore more nearby: King County overview, all King County trails, or statewide Washington list.
Hiking Trails in Mercer Island
Curated Guides for Mercer Island
Frequently Asked Questions
Are there hiking trails in Mercer Island, King County, Washington?
Yes — we have 489 mapped hiking and walking trails in Mercer Island, King County, Washington, sourced from OpenStreetMap. Browse the full list below, with distance, elevation, and difficulty for each.
What is the most difficult hiking trail in Mercer Island, King County, Washington?
Viewpoint #2 Trail near Mercer Island is rated hard — the toughest classification among Mercer Island, King County, Washington's mapped trails.
What is the best hiking trail in Mercer Island, King County, Washington for families?
127th Place Southeast near Mercer Island is one of the best family picks in Mercer Island, King County, Washington — 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 Mercer Island, King County, Washington?
Each of the 489 trails in Mercer Island, King County, Washington 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 Mercer Island, King County, Washington?
We don't have parks or recreation areas mapped in Mercer Island, King County, Washington yet.
Can I go camping in Mercer Island, King County, Washington?
We don't show any campgrounds with mapped campsites in Mercer Island, King County, Washington right now — check the county level for more camping options nearby.
Where can I find hiking trails and parks near Mercer Island, King County, Washington?
Browse all hiking trails, walking trails, parks, and campgrounds across King County for more options beyond Mercer Island, King County, Washington.
From the OutsideAtlas Blog
Photo: Sergei AkulichThe 10 Longest Hiking Trails in Washington, Ranked
Washington's longest mapped hiking trails, ranked by distance with notes on what makes each route worth the commitment.
Photo: Holly MandarichWashington's 10 Most Punishing Trails by Elevation Gain
Steep is hard. These are the ten Washington trails with the most total elevation gain — quad-burners earned by hard climbing.
Photo: Maddi BazzoccoThe Best Beginner-Friendly Hikes in Washington
Ten gentle, well-marked Washington trails perfect for first-time hikers, families, or recovery days.
Photo: Tobias MrzykThe 10 Most Challenging Hikes in Washington
Washington's ten hardest hikes — expert difficulty, big mileage, or serious exposure. Reserved for experienced hikers.
Photo: Diego LozanoThe Best National Parks & Recreation Areas in Washington
Federal parks and recreation areas in Washington ranked by what they actually offer hikers and campers, not just popularity.
Photo: Tobias MrzykBest Waterfall Hikes in Washington: 10 Trails to See Falls Up Close
Washington's best hikes to named waterfalls — from short family-friendly viewpoints to all-day cascade chasing.