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 has been famous for birds, colorful deposits, and billowing vapors.
At Ha'akulamanu (Sulphur Banks), 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.
Learn more about the phenomenon of Steam Vents and Sulphur Banks
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Last updated: November 21, 2024