At Bandon By The Sea in southwest Oregon. The sea stacks here are known as "The Kittens," and are part of "Face Rock State Park." They are also home for many nesting birds such as Muirs, Puffins, and Gulls. As such, the stacks are protected as part of the Oregon Islands National Wildlife Refuge.
Sea stacks are chunks of isolated rock resistant to erosion. They start as part of a headland or sea cliff connected to land. Smashing waves erode the softer rock, leaving harder rock behind in the form of sea stacks.