This morning, you’ll hop on a small Zodiac boat and cruise to Las Tintoreras (Shark Alley), looking out for blue-footed boobies and the famous Galapagos penguin. Take a short walk on this isolated islet and popular iguana nesting site, then snorkel in a calm inlet with colourful fish and winding underground lava tubes. This area is also frequented by green sea turtles that like to rest on the calm, sandy bottom. Return to Isla Isabela and visit the Arnaldo Tupiza Tortoise Breeding Center, where you'll observe giant tortoises in all stages of development. After learning about the thousand turtles that are preparing for life here, you’ll head to a brackish lagoon to observe flamingos. Later today, take a kayak around the island and spend your evening resting in the sand and soaking in your first Isabela sunset – arguably the most beautiful of all the islands!