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Hawaiʻi County

Keauhou Trailhead – Alae Crater loop from Mauna Ulu

Routes

Hiking trails & Routes

United States

Hawaiʻi County

Keauhou Trailhead – Alae Crater loop from Mauna Ulu

Moderate

2.9

(4)

hikers

Keauhou Trailhead – Alae Crater loop from Mauna Ulu

02:01

7.42km

100m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Last updated: May 8, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

East Rift Wilderness

Hawaiʻi Volcanoes National Park

Waypoints

Start point

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1.87 km

Keauhou Trailhead

Highlight • Trail

The Puʻu Huluhulu Trailhead is the start of the Nāpau Crater Trail along the Mauna Ulu lava shield. The trail leads past four notable craters: in order of distance from …

Tip by

1.95 km

Puʻu Huluhulu Trail

Highlight • Trail

5.69 km

Alae Crater

Highlight • Volcano

Alae Crater is 540 feet deep. During the 1969 eruption Alae Crater nearly completely filled with lava over the course of 13 different episodes.

Tip by

7.42 km

End point

Way Types & Surfaces

Way Types

7.41 km

Surfaces

7.41 km

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Weather

Today

Tuesday 30 June

31°C

20°C

31 %

Additional weather tips

Max wind speed: 19.0 km/h

to get more detailed weather forecasts along your route

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Keauhou Trailhead – Alae Crater loop from Mauna Ulu

Keauhou Trailhead

Puʻu Huluhulu Trail

Alae Crater

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