Short On Time? Kilauea Iki Trail is the Ultimate Volcano Hike

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If you only have time to do one hike at Volcanoes National Park, make it the Kilauea Iki Trail. Full of jaw-dropping views and unforgettable Big Island beauty, this trail takes you from rainforest to crater floor.

We recently spent a 4-day weekend on an epic Big Island Road Trip. Although we were staying in the park at Kilauea Military Camp, we only spent one day hiking and exploring. Since we had limited time, we wanted the most ‘bang for our buck’ and the Kilauea Iki Trail delivered!

Fun Fact: Kilauea Iki means ‘Little Kilauea’.

This otherworldly loop takes you from the edge of a lush rainforest to the hardened floor of a volcanic crater. It’s the perfect mix of adventure, scenery, and geological wonder, all packed into an incredibly rewarding hike.

How to spend one day in Volcanoes National Park: hike the Kilauea Iki Trail across a volcanic crater. — *(I’m obsessed with the plants growing out of the lava rock.)*

Kilauea Iki Trail Overview

Where? Hawaii Volcanoes National Park on the Big Island
Fee? $15-80 (depending on type of National Park Pass)
Length? 4.6 miles (2-3 hours)
Elevation? 400 feet
Difficulty Level? Moderate
Terrain? rain forest, rocky crater floor, stairs & switchbacks
Must bring? Water and sunscreen

The Route

We began our hike at the Kilauea Iki Overlook. There are restrooms, plenty of parking, and beautiful views of the crater there.

From the overlook, looking out over the crater, we went left on the trail towards the Thurston Lava Tube. It adds about a mile to the total distance, but it is definitely worth the detour.

If you do the trail this way, you’re technically completing the Nahuku (Thurston Lava Tube) Trail and the Kilauea Iki Trail AND doing a section of the Crater Rim Trail.

Kilauea Iki Trail combined with the Thurston Lava Trail Loop and a section of the Crater Rim Trail for a total of 4.6 miles. — *(This is what the route looks like for a combined total of 4.6 miles.)*

*(You could see the smoking eruption in the Halemaʻumaʻu crater.)*

Why the Kilauea Iki Trail is a Must-Do Hike

Diverse Scenery

The trail starts in a tropical rainforest full of native vegetation. Then you walk across the solidified lava lake that once bubbled with molten rock before ascending back into the rainforest. The juxtaposition of the two vastly different landscapes is jarring.

From dramatic crater views and jagged lava rock to delicate ferns and ohi’a flowers, this trail is a photographer’s dream.

Orchids growing along the Kilauea Iki Trail in Volcanoes National Park in Hawaii. — *(Orchids growing alongside the trail.)*

Ferns growing along the Kilauea Iki Trail. — *(The rainforest is exactly what you would expect from a tropical Hawaiian island.)*

The Kilauea Iki Trail leads you across this crater floor. — *(The nearly bare crater floor is a stark contrast to the rainforest descent.)*

A Big Island road trip wouldn't be complete without a hike near the volcano. — *(Ohi’a flowers growing on the crater floor.)*

Walk Through a Crater

It’s not every day you get to hike inside a volcanic crater. You can often see steam rising from cracks in the crater floor.

For 5 weeks in 1959, fountains of lava gushed from vents in the crater floor. Three days before the eruption ended, lava spewed 1,900 feet into the air – the highest fountain ever measured in Hawaii!

Ahu (cairn) on the crater floor of the Kilauea Iki Trail. — *(Ahu, Hawaiian term for cairn, mark the way across the crater floor.)*

(We spent a lot of time playing around in the crater.)

Just the Right Challenge

At about 4 miles, the Kilauea Iki Trail is doable for most moderately active hikers, with well-marked paths and a clear route.

However, I have to admit that I was exhausted on the way back out of the crater. An ascent of 400 feet with steps and switchbacks is equivalent to climbing down and up a 40-story building. The girls did it, but they griped about it on those stairs!

Stairs on a trail inside Volcanoes National Park. — *(SO. MANY. STAIRS)*

One day in Volcanoes National Park: switchbacks on the Kilauea Iki Trail. — *(And so many switchbacks too!)*

*(I stopped for breaks on the way out up and out of the crater, but I did it!)*

There are plenty of unforgettable sights in Hawai‘i Volcanoes National Park, but if you can only do one hike, let it be Kīlauea Iki.

It’s the perfect blend of adventure, beauty, and volcanic history, offering you a once-in-a-lifetime chance to literally walk through a volcanic crater. Whether you’re a seasoned hiker or just looking to make the most of your visit, this trail truly captures the spirit of the Big Island.