description Spouting Horn Overview
Spouting Horn is a natural geological formation on Kauai’s Poipu coastline. It functions as a blowhole where ocean waves repeatedly drive seawater upwards through a submerged lava tube. This creates a dramatic vertical spray visible from a considerable distance. The phenomenon is notable for its consistent display and offers an accessible demonstration of coastal erosion and wave dynamics.
It's particularly interesting to visitors and students studying geology, marine biology, or Hawaiian geography.
insights Why this score
Spouting Horn ranks #5 of 58 in the Blowhole ranking, behind Mapu'a 'a Vaea Blowhole, ahead of Nakalele Point Blowhole.
help Spouting Horn FAQ
Where exactly is the Spouting Horn blowhole located?
The Spouting Horn is a natural blowhole situated on the southern coast of Kauai in the Poipu neighborhood of Hawaii. It is located right off Lawai Road and is easily accessible via a free public viewing park.
How does the Spouting Horn create its massive water spout?
As ocean waves crash against the rocky shoreline, water is forcefully pushed into a submerged lava tube. When the water compresses the air inside the tube, it erupts through a small opening in the rock ceiling to shoot a massive geyser of seawater into the air.
What causes the hissing and moaning sound at Spouting Horn?
The distinctive hissing sound is caused by air rushing out of the lava tube following the ejection of the water. According to ancient Hawaiian legend, the moaning sound is actually the roar of a giant lizard (mo'o) trapped in the cave by a clever fisherman.
Can you get wet or close to the Spouting Horn blowhole?
Visitors are kept safely behind a secure railing on a designated viewing platform, so you will not get wet from the main spout. However, large waves during high surf can sometimes generate salty sea mist that drifts over the viewing area, especially in the winter months.
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