At only 426 feet wide, South Plaza is one of the smallest islands in the archipelago. Look for yellow land iguanas on a walk to a grove of prickly-pear cactus.  Non-hikers can enjoy a Zodiac ride, watching for swallow-tailed gulls, red-billed tropicbirds and blue-footed boobies. Since there is no true trail on Mosquera Islands, you are able to stroll at your leisure. (B,L,D)

The tiny uplifted island of Sombrero Chino – or Chinese Hat – features a primeval landscape of volcanic rubble and lava tubes. The “land” is made of a few adjacent craters and old, fragile pahoehoe lava flows. Vegetation is just starting to take hold, including colorful carpetweed plants. Enjoy a Zodiac ride and swim before lunch. This afternoon, search the tide pools of Puerto Egas for sea life. During low tide, we may see marine iguanas feeding on algae. Our naturalists will point out the birdlife, including great blue herons, lava herons, oystercatchers and yellow-crowned night herons. (B,L,D)

Genovesa is often referred to as “Bird Island” for the vast numbers of pelagic seabirds that come here to nest. And while Genovesa harbors one of the Galapagos’ largest and most diverse bird populations, there are no land reptiles — with the exception of some very small marine iguanas. This is due to the direction of the ocean currents, which couldn’t carry the terrestrial animals here. Climb Prince Philip’s Steps to an area with colonies of red-footed boobies. Watch for short-eared owls which feed on the petrals that fly about. Explore Darwin Bay, home to the rare lava gull. While anchored at Genovesa, enjoy an opportunity to swim, kayak and snorkel in the calm caldera of this partially eroded volcano. (B,L,D)

North Seymour is the nesting site for a large population of magnificent frigatebirds and the only place where we can always find males showing their red pouches to attract females. Plus, we are sure to see blue-footed boobies perform their comical courtship dance in the open areas. Hike to a scenic lagoon, where we may observe Galapagos hawks, mockingbirds and a variety of Darwin’s finches. You may kayak and snorkel from the beach. (B,L,D)

Hike to Post Office Bay, once used by navigators to send mail with homebound messengers. Swim and kayak in the bay before a walk along the olivine beaches of Punta Cormorant. After hiking to a flamingo lagoon, spot fish and sea turtles during a relaxing stroll along the beach. Enjoy superb snorkeling at Devil’s Crown, where sea water has filled the sunken cone of an extinct volcano. (B,L,D)

Begin our day in the forested highlands, with ample opportunity to see and photograph giant tortoises in the wild. Stop at a family run farm before learning about the work being done to study and preserve wildlife at Fausto Llerena Tortoise Breeding Center at the Darwin Research Center. (B,L,D)