Set sail for Black Turtle Cove, which is only accessible by boat with a guide. This cove and its surrounding mangroves function as a nursery for young marine life. Glimpse blacktip and whitetip reef sharks, sea turtles, golden cownose rays, spotted eagle rays, and the occasional hammerhead shark.
In the afternoon, travel to Espumilla Beach, a large, coffee-coloured beach which is located north of the prized fresh water supply that once attracted pirates and whalers to the area. See nesting sea turtles on a hike along the mangroves. Make your way towards Buccaneer Cove, aptly named for the pirates who used to drop anchor in order to to make repairs and stock up on tortoise meat. Snorkel in the bay and see the underwater marine life.
After lunch, sail for Sullivan Bay. This bay features an extensive lava field which has a variety of interesting patterns made by the shapes and textures of trees that once existed on the island. Walk around the lava cactus and watch oystercatchers fishing in the shallows of the bay.
In the afternoon, transfer to Baltra airport for your connection back to the mainland.