Mercer Island, WA Trails and Parks
Mercer Island has 2 trails in the vicinity, including 1 for road biking and 1 for mountain biking. These trails range from 5 to 13.9 miles in length. The most popular trail is Mercer Island Loop
and Pioneer Park
. Trails.com member Mark D.
recently completed Mercer Island Loop
Best Trails in Mercer Island