Big Island · Volcano
Steaming Bluff (Wahine Kapu)
Wahine Kapu
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This place asks to be respected from a distance. Please do not enter.
Steaming Bluff (Hawaiian: Wahine Kapu, "forbidden / sacred women") is a stretch of the Kīlauea Caldera rim with continuous steam venting through cracks in the basalt. The steam is rainwater that has percolated down, been heated by hot rock at shallow depth, and risen back as vapor — passive geothermal feature, no magmatic gas content (unlike Sulphur Banks half a mile east, which taps the magma system directly). Safe for visitors with respiratory sensitivities. Sacred site in Hawaiian religious practice; the name indicates kapu (ritual prohibitions) historically restricted access. Bluff offers views across the Kīlauea Caldera floor toward Halemaʻumaʻu in the distance. Native vegetation along the trail includes ʻōhelo (sacred to Pele), ʻōhiʻa lehua, and hāpuʻu fern.
The Hawaiian name Wahine Kapu means "forbidden women" or "sacred women" — this is a consecrated site in Hawaiian religious practice. Stay on the marked trail. Do not approach the steam vents directly; the heat is real and the ground around them is unstable. Do not pick the ʻōhelo berries growing along the trail unless you have been trained to make the traditional offering to Pele first. Do not leave offerings unless trained.