Sea Lion Caves
The Sea Lion Caves is one of the great sea grottos of the world, as it is concidered the largest. The cave system is at sea level and the ocean continually washes into the main cavern which has a floor area of about 2 acres and a vaulted rock dome about 125 feet (38 m) high. Lichens, algae, and mineral stains cover the cavern walls with greens, pinks, purples, buffs, and reds, forming on the rough surfaces. The sea level portion of this cave and the sea cliff rocks just outside the cave have become, over the centuries, the only known mainland rookery and hauling area (wintering home) of the Stellar Sea Lion.
Sea Lion Caves are a connected system of sea caves and caverns open to the Pacific Ocean in the U.S. state of Oregon. They are located 11 miles (18 km) north of Florence on U.S. Highway 101.