Admire the geological formations of Bartolome. Craters, cinder cones, lava flows, spatter cones, and broken lava tunnels pepper the whole island. Hike 380 steps up the boardwalk to the summit of the island and reward yourself with 360-degree panoramic views of the surrounding islands. Enjoy photographic opportunities at the famous Pinnacle Rock, a towering, spearheaded obelisk that rises from the ocean’s edge. After the hike, try snorkeling from the beach, where you can potentially swim with sharks, penguins, and colorful reef fish underneath the clear waters.