Hawaii trails · Humuula Trail

Humuula Trail

A 5.8-mile out-and-back in Hawaii, with 3,271 ft of climbing. Reaches Paeoopu Pool. Managed by the state.

Open in the interactive map →

Length

5.8 mi

Elevation gain

3,271 ft

Difficulty

Expert

Max grade

21%

Steepest mile

+693 ft

Tread at ≥10% grade

3.3 mi

Shape

out-and-back

Horses

yes

Managed by

State

Elevation profile

The climbing is spread fairly evenly along the route. It climbs almost continuously, with little descent to recover on.

3-D terrain

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5

Reaches

Paeoopu Pool (lake)

Getting there

Humuula Trail access. 19.91780, -155.34025 · directions

Daylight at the trailhead

On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 5:43 a.m., the sun rises at 6:05 a.m. and sets at 6:37 p.m., and the last usable light fades about 6:59 p.m. (HST) — 12 h 32 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 11.7-mile round trip takes roughly 7 h 36 min, so leaving the trailhead at sunrise puts you back around 1:41 p.m. — 4 h 56 min before sunset.