5-Day Southern Islands: Espanola's Albatross Colony

Most Galapagos itineraries begin here. Baltra's airport is the world's first fully ecological airport, run on solar and wind power and built largely from recycled materials, including old oil pipes repurposed into the terminal structure. Land iguanas, wiped out here by the 1950s and reintroduced through a decades-long breeding program, now number in the hundreds again, some right around the airport grounds. From the terminal, a short bus transfer brings you to the pier for the panga ride out to your ship.

Up in the cool, misty highlands of Santa Cruz, a short walk brings you among wild giant tortoises moving through the undergrowth on their own terms. No fences, no enclosures, just several-hundred-pound reptiles going about their day. This is one of the best places anywhere in the islands for that encounter, and the surrounding vegetation is good habitat for several of Darwin's finches, heard as often as seen.

A tiny, flat islet of white coral sand between North and South Seymour, Mosquera is best known for its resident sea lion colony, sprawled across the beach for much of the day. Shorebirds and lava herons work the shoreline fairly reliably, and sharks and rays are a possibility for anyone snorkeling or diving nearby.

A short landing puts you immediately among sea lions and the endemic Plaza land iguana, smaller and more golden than its relatives elsewhere. Watch closely and you might spot a rare hybrid, the result of an occasional cross between a marine and a land iguana found only here. The trail crosses a carpet of succulent Sesuvium, red for part of the year, studded with Opuntia cactus. Along the cliffs, swallow-tailed gulls nest on the ledges beside red-billed tropicbirds, and frigatebirds circle overhead as the loop returns to the landing.

From the landing, a trail leads to a wide, shallow lagoon where Galapagos flamingos wade through the shallows, filtering shrimp from the mud that gives them their color. Continuing over a low rise brings you to Flour Beach, a nesting ground for green sea turtles between December and June. Just offshore, the eroded remains of an old volcanic cone form Devil's Crown, one of the best snorkeling spots in the islands. White-tipped reef sharks and spotted eagle rays are a near-certain sight inside the ring, and on a good day you might also spot hammerhead sharks, sea lions, or a colorful mix of reef fish weaving through the rocks.

One of the few places in the islands where human history takes center stage over wildlife. In 1793, a whaling captain installed a wooden barrel here as an informal mailbox, and the tradition has never stopped: you're welcome to leave a postcard without a stamp, and to sort through what's already inside for anything addressed near your own home to hand-deliver in person. After a wet landing on the sandy beach, a short walk brings you to the barrel. It is one of the most memorable traditions anywhere in the islands.

A dry landing among the rocks puts you right at the start of one of the richest walks in the islands. The trail follows dramatic cliffs where blowholes send spray high into the air with every swell, and along the way marine iguanas bask on the black rock. Between December and March, the males here turn a striking red and green for the breeding season. Punta Suarez is the only place on Earth where waved albatrosses nest, and between April and December you'll find the colony in full swing, their courtship displays peaking in October. Blue-footed and Nazca boobies nest along the same stretch of cliff, red-billed tropicbirds circle overhead, and the endemic Espanola mockingbird, famously bold, often comes right up to visitors. Keep an eye out too for the Galapagos hawk and the Galapagos dove working the scrub beside the trail.

A short landing on one of the most beautiful beaches in the islands brings you into a resident colony of Galapagos sea lions, sprawled across the white sand. Between August and November you may also spot pups nursing nearby. This is one of the only places to see the Espanola mockingbird, found nowhere else on Earth and famously unbothered by visitors. After time on the beach, a relaxed snorkel just offshore is a good way to close out the visit, with spotted eagle rays often gliding beneath the surface.

The Galapagos National Park's Interpretation Center on San Cristobal, open since 1998, walks you through the islands' volcanic origins, the evolution of their wildlife, and the conservation work protecting them today, organized chronologically across a series of exhibits. It's a good first stop for context that makes everything you see afterward click into place, a walk-through, education-focused visit rather than a wildlife stop.

The transfer back is the reverse of the arrival: a panga ride from your ship to the pier in Puerto Baquerizo Moreno, then a short drive to the airport, which sits right next to town. Keep an eye out for sea lions and marine iguanas near the runway on the way in, one last sighting before you fly out.