Parking
Use the Kealakomo parking area on Chain of Craters Road. The Nāulu access begins across the road from the Maunaulu area.

Hawaiʻi Volcanoes National Park, HI
A steady climb over rough lava links Kealakomo with the Nāpau junction.
Overview
Map & elevation
Plan your hike

The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Hawaiʻi Volcanoes Tour Guide
Parkwolf is a GPS audio tour guide for Hawaiʻi Volcanoes National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
See the Hawaiʻi Volcanoes audio tourRecorded for this trailhead
Kealakomo: The Village Beneath the Lava“Up ahead is Kealakomo Overlook, a quick stop with a wide view across the lava plain to the Pacific. I'd pause here even if you aren't hiking; you can take in the scale of the coastal flows without a long walk.”
Plays as you drive up to this trailhead in the Parkwolf Hawaiʻi Volcanoes Tour Guide.
More stories near here in the app
Trail guide
Nāulu is a 6.4-mile out-and-back from Kealakomo parking area to the Nāpau Trail junction. Plan about 3½–4 hours for the long, uneven ascent and return. Elevation figures differ: park material gives about 500 feet of change, while samples along the mapped line rise about 830 feet to the junction, so plan for a sustained climb. This listing ends at the junction; continuing toward Nāpau Crater is a separate, longer outing (5.2 miles one way from Nāulu access).
The route moves between forest and exposed lava. Expect rough, unstable ʻaʻā and pāhoehoe underfoot. Cairns can blend into the dark rock; pause at each marker and follow the line carefully across the flows.
There is no drinking water at the trailhead or along the route. Pets are not allowed on backcountry trails. Backcountry camping requires a permit, so an overnight extension needs separate planning.
Wildlife
600 sightingsHawaiian Goose (Nēnē)Most seen around 5 PMSighting map
35 sightingsGreen Sea TurtleMost seen around 11 AMSighting map
36 sightingsHawaiian Hawk ('Io)Most seen around 11 AMSighting map
41 sightingsBlack NoddyMost seen around 5 PMSighting map
96 sightingsWhite-tailed TropicbirdMost seen around noonSighting map
24 sightingsHawai'i 'ElepaioMost seen around 8 AMSighting mapSighting maps show where each species has been reported across Hawaiʻi Volcanoes. Wildlife moves, so no sighting is guaranteed.
Keep exploring
ModeratePuʻuloa Petroglyphs Trail1.4 mi · 1.3 hr · 2.8 mi awayRough lava footing leads to Hawaiʻi’s largest petroglyph field.
ChallengingPuna Coast Trail to ʻĀpua Point10.8 mi · 6.5 hr · 2.8 mi awayA long lava coast walk ends beneath ʻĀpua’s coconut grove.
ChallengingKeauhou Trail15.2 mi · 8.5 hr · 3.1 mi awayLava ridges lead to a freshwater seep on the remote coast.
ChallengingMakaopuhi Crater Trail8.2 mi · 5 hr · 4.9 mi awayA long lava crossing opens at a steep, forested crater rim.
ModerateMaunaulu / Puʻuhuluhulu Trail2.5 mi · 2.5 hr · 4.9 mi awayCross 1969 lava flows to a forested cone and its viewing platform.
ChallengingNāpau Trail12.4 mi · 7.2 hr · 4.9 mi awayCross old lava rivers into a fern forest and a crater overlook.
ModerateMaunaiki Trail7 mi · 4.5 hr · 7.6 mi awayA rough lava route through the Kaʻū Desert to Hilina Pali Road.
EasyNāhuku (Thurston Lava Tube) Trail0.4 mi · 30 min · 8.4 mi awayA short ferny walk leads into a 500-year-old lava tube.
Sight · At the trailheadKealakomo OverlookA coastal overlook above a village buried by lava.
Sight · 1.1 mi awayAlanui KahikoA short walk reveals road pavement trapped by lava.
Sight · 2.1 mi awayMuliwai a PeleA three-day lava river left its own channels and levees.
Scenic pullout · 3.1 mi awayMau Loa o MaunauluSee Maunaulu's glassy 1969–74 lava field from the road.
Sight · 3.1 mi awayPuʻuloa PetroglyphsWalk rough lava to a field of more than 23,000 petroglyphs.
Sight · 3.3 mi awayMakaopuhi Crater OverlookKīlauea’s largest pit crater, with a blue lava lens on its wall.
Sight · 4.1 mi awayNāpau CraterReach Nāpau Crater by a strenuous hike over lava and through rainforest.
Sight · 4.4 mi awayHōlei Sea ArchThe sea arch is gone; the black-lava coast remains.Parkwolf’s Hawaiʻi Volcanoes ranking