Lake Serene Trail is a round-trip hike of 7.7 mi / 12.4 km near Index. Expect about 1,562 ft / 476 m of elevation gain, with a high point of 2,723 ft / 830 m. Difficulty: Moderate. At an average pace, plan on about 4 hr 7 min.
Elevation profile
Along the route: low 1,171 ft / 357 m · high 2,707 ft / 825 m