Day Hike - Ha‘akulamanu (Sulphur Banks)

Ha‘akulamanu Boardwalk
Ha‘akulamanu Boardwalk

NPS Photo

Sulphur Banks (Ha‘akulamanu)
Ha‘akulamanu - Sulphur Banks

NPS Photo

Ha'akulamanu (Sulphur Banks) Trail

Due to underground heat, this dramatic volcanic thermal area has very few trees. Known as Ha'akulamanu, this unusual place, with steaming cracks and colorful mineral deposits, has been famous for birds and healing vapors.

  • Difficulty: Easy
  • Distance: 1.2 mile (2 km) round trip
  • Trail begins at the far left of the Kīlauea Visitor Center parking lot past the Volcano Art Center Gallery
    (The other end of the trail can be picked up across the street from the Steam Vents)

At Sulphur Banks (Ha'akulamanu), volcanic gases seep out of the ground along with groundwater steam. These gases are rich in carbon dioxide, sulfur dioxide and hydrogen sulfide -- the gas that smells like rotten eggs. Some sulfur gases deposit pure crystals at Sulphur Banks. Other sulfur gases form sulfuric acid which breaks down the lava to clay. This clay is stained red and brown with iron oxide.

Visitors with heart or respiratory problems (such as asthema), pregnant women, infants, or young children should avoid this walk.


Last updated: November 7, 2019

Contact the Park

Mailing Address:

P.O. Box 52
Hawaii National Park, HI 96718


(808) 985-6101

Contact Us