DAY 4, Monday - Full Day on Isabela Island
This morning's outing takes you to Sierra Negra Volcano. A short hike up the slope leads you to the caldera, or large volcanic crater, of Sierra Negra where breathtaking views await. The tour will stop for a rest and light snack. The adventurous have the option to continue on a more challenging hour-ling hike to Volcan Chico, where steam and gas vents are abundant and additional spectacular views can be found. After a morning of hiking, enjoy lunch at Camp Duro. This beautiful organic farm prepares meals with locally grown fruits and vegetables. Following lunch, you can enjoy a stroll among the fruit treas or relax in a hammock. You can visit the giant tortoises that the farm cares for in collaboration with the Galapagos National Park. After your visit to Camp Duro, return to your lodge. The remainder of the afternoon is at leisure to explore Isabela Island on your own, or you can join an excursion to the Concha de Perla site and snorkel among the abundant inhabitants of the bay, which often include sea lions and green turtles. (Breakfast, Lunch, Dinner)

DAY 5, Tuesday - Return to Santa Cruz
After breakfast, depart by boat for a tour of Las Tintoreras islet and bay. Along the way search for blue-footed boobies and Galapagos penguins gathered among the rocks. After docking, join a hike through an otherworldly jagged lava field, home to large colonies of marine iguanas and sea lions. Following your hike, you can snorkel in the warm waters of the bay for an up-close look at marine life. Look for sea lions, sea turtles, white-tipped reef sharks, and the tangled underwater forest of mangrove roots. Return to the lodge for lunch and afterward depart for the two hour boat transfer back to Santa Cruz Island. Upon arrival, check back into the Aventura Lodge. In the afternoon, enjoy a guided tour of the Charles Darwin Research Station, a specialized breeding and rearing center for the endangered Galapagos Giant Tortoise. The station is a working branch of the international, non-profit Charles Darwin Foundation which works to protect and maintain the Galapagos' precious ecosystems. Here you will learn about the remarkably successful breeding program and get to see these amazing animals up close. (Breakfast, Lunch, Dinner)