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Pets allowed
No
Elevation Gain
?
Trail type
There-and-back
Distance
0.50 mi (0.80 km)
Please respect the outdoors by practicing Leave No Trace. Learn more about how to apply the principles of Leave No Trace on your next outdoor adventure here.

When you’re setting off for your day (or two) adventuring along the Road to Hana, don’t forget to toss in your headlamps! This half-mile self-guided tour through 1,000 year-old lava tubes is truly a worthwhile experience especially if you’re bringing little ones along. The variety of wild cave formations is downright fascinating, and, oftentimes, the cooler air is a lovely reprieve.

A visit to the caves (between 10:30 a.m. and 4 p.m.) will cost you $12, though kids under 5 are free. They’ll give you flashlights to use, and though caving can conjure notions of highly uneven terrain, bats, bugs, and tight spaces, the Ka’eleku Cave is spacious and traversed by a well-traveled cinder path supported by a hand rail. 

As a massive volcano eruption spewed a nearly inconceivable amount of lava down these hillsides toward the sea, the layers closest to the open air slowly cooled to form a crust, leaving massive underground rivers of lava meandering toward the sea for nearly two years after the eruption ended. Eventually, all of the lava drained out, leaving this structure—the 18th largest lava tube in the world. In most places, the distance between the cave and the open air is between 30 and 50 feet, though erosion slowly carved away at the ground until it exposed the entrance to the cave. It’s so deep, sturdy, and large, that it was once set aside to be a government fallout shelter.

Along your hike through the cave you’ll come across a number of different formations. Keep an eye out for the notorious Ropey Pahoehoe that looks remarkably like brownie batter, pillars, stalagmites, cauliflower, a Flintstone-esque "bowling alley" and more. For a solid dare, turn off all of the flashlights/headlamps in your group. It’s quite unnerving!

Logistics + Planning

Preferable season(s)

Winter
Spring
Summer
Fall

Congestion

Moderate

Parking Pass

General Day Use Fee

Pros

18th largest lava tube in the world. Interpretive signage. Lighting available for rent.

Cons

Only part of the cave is accessible to public.

Trailhead Elevation

240.00 ft (73.15 m)

Net Elevation Gain

120.00 ft (36.58 m)

Address

Ulaino Rd
205
Hana, HI 96713
United States

Features

Cave

Location

Field Guide

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