The Sunset Trail begins at the rear of the park on the west side behind the playground. Walk through the opening in the park perimeter fencing, follow the trail down the stairs, and continue left after reaching the service road. The trail will consist of moderate terrain with moderately strenuous changes in elevation. It travels through the valley between the Windmill Creek neighborhood and Tres Hermanos Ranch. Hikers will enjoy peaceful scenery and viewpoints of Chino Hills, Diamond Bar, Tres Hermanos Ranch, the Chino Valley, and Inland Empire. The trail ends at the south side of Grand Avenue Park.