Arrive at the small and rocky Magdalena Island, also called Los Pinguinos Natural Monument, a protected nature reserve and park since 1982, and a breeding site for Magellanic penguins. Even before the boat docks, you’ll see thousands of penguins crowding the shores and hear their squawking. During the summer, approximately 120,000 penguins occupy the island. Disembark and spend about an hour here with your guide, keeping to the designated trail roped off for visitors. These curious birds, about 2 feet (61 cm) tall, will cross your path and may approach you, but you'll be instructed not to touch or feed them. On either side of the trail, see hundreds of burrows in the ground, about a foot (30 cm) in diameter, each populated by a pair of penguins. Watch penguins pop in and out of the holes, where eggs are laid, and others excavate new burrows by flinging aside heaps of dirt with their webbed feet. Your guide may point out cormorants and Andean seagulls on the island as well. Reach the highest point on the island and enter a lighthouse, which houses exhibits explaining the penguins’ habitat and breeding cycles, the history of the strait and the rich ecosystems of nearby islands.

Then warm up with coffee and snack on biscuits (provided) before leaving the island. On your way back, if the weather permits, your captain may pass by Isla Marta, where you can snap shots of sea lions and elephant seals lounging on the rocky outcrop.