Breakfast. Transfer to the harbor of Puerto Ayora to take the speedboat to Isabela Island. This navigation will take us about 2 hours and 30 minutes. Once we arrive on this beautiful and pacific Island “Isabela”, we will go to the hotel for the check-in. Isabela, is a small port village, with sandy streets, a few locally run restaurants, small hotels, and nice people. Our first visit will be to LOS TUNELES, also known as “Cabo Rosa”. It is the most spectacular site for snorkeling in Isabela Island due to its crystal-clear and shallow waters, a real sea sanctuary. Millions of years ago, the lava flows formed a large number of arches and tunnels getting to be one of the most bio-diverse sites in the Galapagos Islands. The adventure starts in Puerto Villamil, where you will take a boat ride for approximately 45 minutes to do the first stop in the open sea, around Roca Union. This site houses blue-footed boobies, Nazca Boobies, Brown Pelicans, Penguins, Zayapas, and Iguanas that can be seen very close to the boat. Then we will do a second stop to walk on these beautiful lava formations to catch with our eyes the sea lions resting on the rocks or playing by the lava tunnels. We can also see cacti that have been adapted to this kind of lava formation. Our last and wonderful stop will be snorkeling in open water, we will get into a wonderful submarine world where we can swim along with white-tipped sharks, manta rays, penguins, sea lions, sea turtles, sea horses, lobsters, sea snakes, among many other tropical species. Return to Puerto Villamil.