Natural Seawall

Powerful ocean storms here have assembled the cobblestones common on many of Maine’s beaches into a massive seawall. As waves break, they scour rocks from the base of the beach and carry them up onto the shore. As the tide rises, the waves pile the stones higher and higher. When the tide recedes, it leaves the larger, heavier stones at the top and drops the smaller, lighter stones down the slope.

Southwest Harbor, Maine · United States