Just south of the town of Yachats on the central coast of Oregon is the Cape Perpetua Scenic Area that is a must stop to explore destination. Containing some great coastal views from above, there are some very unique features along the coastline to explore, namely Thor's Well, the Spouting Horn, and Devils Churn, pictured here.
Devils Churn is a narrow inlet where the tide comes in and often throws spray several hundred feet into the air when the waves hit the back of the churn. The height of the spray depends on how rough the waves are -- the rougher the incoming waves are, the higher the spray. Devil's Churn was actually a cave that was formed by the waves, and through the constant pounding of the water over thousands of years, the cave's roof collapsed, thus forming the inlet.