5-Day Southern Islands: Gardner Bay's Sea Lion Beach

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 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.

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.

Formed by geological uplift rather than volcanic activity, Santa Fe is unusually flat for a Galapagos island, and it's the only place on Earth with its own endemic subspecies of land iguana. After landing in clear, turquoise water, a walk through a forest of giant, tree-sized Opuntia cactus leads to iguanas basking beneath them. The Galapagos dove is a reliable sight along the trail, and with some luck you may also spot the Galapagos snake or the Galapagos hawk.

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.

Reachable only by sea, Black Turtle Cove is a mangrove-lined lagoon on Santa Cruz's north shore, protected as a turtle sanctuary. A slow, quiet dinghy ride carries you between four species of mangrove while sea turtles surface for air around the boat, one of the most reliable sightings in the islands. Look down and you'll often see golden and eagle rays moving beneath the hull, and white-tipped reef sharks resting in the shallows.

One of the few visitor sites directly tied to an active conservation program, run jointly by the Charles Darwin Foundation and the Galapagos National Park, working to restore the local land iguana population. From the rocky landing, which doubles as a good snorkeling spot, a trail leads inland past two small saltwater lagoons, sometimes home to flamingos, before circling the hill itself, where land iguanas and their burrows dot the hillside.

A relaxed, sandy stop on Santa Cruz's north shore. A lagoon just behind the beach occasionally draws flamingos and other shorebirds, and the beach itself is one of the archipelago's main sea turtle nesting grounds, most active between December and June. It's an easy visit, as much about the swim as the wildlife.

The return transfer is straightforward: a panga ride from your ship to the pier, then a short bus ride to Baltra's airport, the world's first fully ecological terminal, run on solar and wind power. Land iguanas, reintroduced here after being wiped out decades ago, are sometimes seen right around the grounds on the way to your flight.