Bartolomé Island’s famous landmark is Pinnacle Rock. This volcanic cone is also called The Tower. The jagged façade is stunning. These are layers of basalt spewed from the sea by an underwater volcano. Equally inviting is the coralline beach (La Playa). The landing here is a wet one. Snorkeling along this north shore is ideal for swimming with stingrays, sharks, sea lions, sea turtles and adorable penguins. However, the waters on the south side are too rough and dangerous.