This morning, you’ll hop on a small motorboat and cruise to Las Tintoreras (Shark Alley), looking out for blue-footed boobies and the famous Galapagos penguin. Take a short walk through a marine iguana nesting site (watch your step as they camouflage into the surrounding rock!), then stop at ‘Shark Alley’ – a narrow channel where white-tipped reef sharks rest in the clear, shallow waters. Head back to the boat, then put on your snorkelling gear and jump in to look for sea turtles, playful sea lions, colourful fish, eagle rays and sea stars. Return to Isla Isabela for lunch and then visit the Arnaldo Tupiza Tortoise Breeding Center, where you'll observe giant tortoises in all stages of development, then visit a brackish lagoon to observe flamingos. Later today, kayak around the Bay of Puerto Villamil, maybe spotting pelicans, frigatebirds and the brightly coloured Sally Lightfoot crabs along the way. Spend your evening resting in the sand and soaking in an Isla Isabela sunset – arguably the most beautiful of all the islands!