Lizards, Iguanas, Sea Lions, Penguins and more. It's like a wildlife smorgasbord. Part 1 of my Galapagos Contiki Tour starts with a stroll through Tintoreras or more locally known as Shark Alley, an isolated islet and popular iguana nesting site that is home to hundreds of marine iguanas. Plus take in the views from the Sierra Negra Volcano. And a visit to the Giant Tortoise Breeding Center and Wall of Tears on the largest island, Isabela in the Galapagos.