We explore Tintoreras, a set of small islets filled with hidden coves and beaches. Here, we will find the endemic Galapagos penguin as well as white tip sharks, sea turtles, and sea lions. This is the largest island in the Galapagos and is still being formed by 6 shield volcanoes. Hence, Isabela is one of the most volcanically active spots on the planet This afternoon, we embark on perhaps the most scenically-varied hike in the Galapagos. Along the trail, we will visit El Muro de las Lagrimas(Wall of Tears). When Isabela was used as a penal colony, prisoners constructed a towering wall of lava rocks for no other purpose than to keep them distracted from the madness of isolation. We continue along white sand beaches, mangroves, brackish lagoons, and a lava tube. The area is filled with giant tortoises and birdlife. Afterwards we will visit the breeding center and the flamingo lagoon. Breakfast and overnight at the hotel.