This sign is located along the trail below the Cook’s Chasm bridge.
Marker Name: Something to Spout About
Marker Text: What is a spouting horn?
The constant pounding of the waves and weather have worn away at cracks and crevices in the volcanic basalt, making tidepools, caves, and vent holes.
At or before high tide, when a wave covers the two rocks in front of the cave opening, there will usually be enough water entering the cave and sufficient pressure built up inside to send a whale-like spout through the vent hole 20-45 feet in the air.
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