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Hawaii trails · Aiea Loop Trail

Aiea Loop Trail

A 4.2-mile out-and-back in Hawaii, with 846 ft of climbing. Reaches Puʻuʻuaʻu.

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Length
4.2 mi
Elevation gain
846 ft
Difficulty
Hard
Max grade
28%
Steepest mile
+430 ft
Tread at ≥10% grade
1.2 mi
Shape
out-and-back
Surface
Ground
Bikes
no
Horses
no

Elevation profile

721 – 1,574 ft1234

Most of the climbing sits in the middle third — 68% of the ascent, between mile 1.4 and mile 2.8. It gives back about 724 ft along the way, so it rolls rather than climbing steadily.

3-D terrain

3-D terrain view of Aiea Loop Trail

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

Reaches

Heads up

Stream ford: expect at least one unbridged crossing.

Daylight at the trailhead

On October 14, 2026 — the day this page was generated — first light reaches this trailhead at 6:04 a.m., the sun rises at 6:26 a.m. and sets at 6:07 p.m., and the last usable light fades about 6:30 p.m. (HST) — 11 h 41 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 8.5-mile round trip takes roughly 3 h 59 min, so leaving the trailhead at sunrise puts you back around 10:26 a.m. — 7 h 42 min before sunset.

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