The 1,718-acre Turtleback Mountain Preserve is one of the largest protected natural areas in San Juan County. The destination provides more than 8 miles of trails that can be used for hiking, mountain biking, and horseback riding. To keep the trails from crowding and to protect the preserve, bikes are permitted on even calendar days only, while horses are permitted on odd calendar days. Pedestrians are permitted everyday.
On a clear day, the trails of Turtleback Mountain Preserve provide numerous panoramic views over the San Juan Islands and Salish Sea.