A cavernous sea cave adopted by a herd of Steller sea lions, some years numbering as many as 200. Take an elevator ride 200 feet (61 m) down into the cave as tall as a 12-story building and as wide as a football field. During the fall and winter barking sea lions lounge around inside the cave's natural amphitheater and during the summer months they sprawl along outside rock ledges with their young. Believed to be America's largest sea cave and the only known mainland home of wild sea lions in the world. Outside paths and viewing platforms. Gift and snack shop.