Happy Lake Trail is a 0.88-mile out-and-back foot trail in Olympic National Park, Washington. It climbs 364 ft to a high point of 5,255 ft. Difficulty: easy, from the NPS hiking-rating formula.
Open Happy Lake Trail on Trailbound's interactive map to see the full route, the elevation profile, today's forecast and any park alerts for Olympic. Olympic has permits or reservations for some areas: see the Olympic page for what's needed.