8-Day Western Islands: El Junco's Bathing Frigatebirds

San Cristobal's airport sits at the edge of Puerto Baquerizo Moreno, a five-minute drive from the town center, so this is usually your first taste of the islands rather than a standalone excursion. Sea lions and marine iguanas are known to rest right next to the runway here, an unscripted welcome few airports can match. From the terminal, a short transfer takes you down to the pier for a panga ride out to your ship.

El Junco sits in the highlands of San Cristobal at around 700 meters, the flooded caldera of an extinct volcano and one of the few permanent freshwater sources anywhere in the Galapagos. A short trail circles the rim through ferns and Miconia shrubland. It's one of the best birding stops in the islands. Frigatebirds fly all the way up from the coast to bathe and drink here, a rare freshwater habit for a seabird.

A dry landing sets you down on North Seymour's flat, sun-baked terrain, and the trail wastes no time getting to the action: magnificent frigatebirds display from low shrubs right along the path, males inflating their scarlet throat pouches into balloons to catch a female's eye. Blue-footed boobies are a near-constant presence along the same stretch, and during the breeding season you may catch their high-stepping courtship dance just a few feet from the trail, showing off the bright blue feet that give the species its name. Land and marine iguanas share the coastline as the trail loops back toward the water, and sea lions haul out along the shore. Keep an eye on the cliffs above the surf too, where swallow-tailed gulls sometimes perch between flights out to sea.

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.

Sierra Negra's caldera stretches 10 km north to south and 9 km east to west, one of the largest volcanic calderas on Earth. The more commonly walked route to Volcan Chico crosses relatively recent lava flows with sweeping views toward the volcanoes of Isabela and neighboring Fernandina; a longer trek reaches a system of active fumaroles known as the Sulfur Mine. This is a geology-and-scenery visit, and wildlife isn't the focus here.

Also known as the Arnaldo Tupiza Tortoise Breeding Center, this facility near Puerto Villamil centers on giant tortoise conservation, with eggs incubated in a hatchery and young tortoises raised in supervised corrals before release. Around the grounds, keep an eye out for vegetarian finches, small tree-finches, Galapagos lava lizards, and smooth-billed anis alongside the tortoises the center exists to protect.

At first glance Punta Moreno looks like little more than a lava flow at the base of Cerro Azul, but its black surface holds a series of lagoons with a surprising amount of life. Flamingos are a fairly good bet in the pools, and paint-billed crakes, white-cheeked pintails, and common gallinules turn up for those willing to watch the water closely.

At the base of Alcedo Volcano on Isabela, Urbina Bay marks a dramatic geological event: a 1954 uplift left blocks of coral fully exposed on dry land, well above the waterline. A long, level walk leads out to them, passing land iguanas and flightless cormorants along the way, and, on occasion, a giant tortoise.

Fernandina is the only major island in the archipelago with no introduced species, which makes Punta Espinosa one of the most pristine wildlife encounters anywhere in the Galapagos. A wet landing brings you onto black lava draped with the largest gathering of marine iguanas in the islands, alongside Galapagos penguins and flightless cormorants, both drawn here by the cold, nutrient-rich current. Around June, when marine iguana hatchlings emerge, keep an eye out for the Galapagos racer snake hunting along the nesting zone. Snorkeling here is a rare chance to watch marine iguanas feeding underwater, a behavior found almost nowhere else.

There's no landing at Punta Vicente Roca: this dramatic, eroded caldera on Isabela's coast is explored entirely by snorkel, dinghy, or kayak. The cold Cromwell Current runs through here, and it's what keeps the water so alive: blue-footed boobies nest reliably along the cliffs, and in the water you can expect Galapagos penguins and, between July and November, ocean sunfish rising to cleaning stations in the cold upwelling. Sperm whales pass through on rare occasions, and giant manta rays are a possibility during the same cooler months.

A panga brings you ashore onto one of the most distinctive beaches in the islands, with sand tinted deep red by its high iron content, with Rabida's rugged cliffs rising behind it. Sea lions are usually stretched out along the shoreline, and it's a good spot to watch for the endemic Galapagos dove working the sand nearby. From the beach, a short trail winds through palo santo forest and cactus scrub, climbing gently to an overlook with sweeping views across the bay, a nice place to pause and take in the color of the landscape before heading back down. If you'd rather stay on the water, snorkeling right off the beach is an easy, relaxed way to spend the visit, with good odds of company from the resident sea lions.

A wooden staircase of 372 steps climbs Bartolome's extinct volcano from a lava-and-concrete dock or sandy beach, depending on conditions. Along the way, red, orange, black, and even green volcanic layers mark the slopes, home to pioneer plants like the island-endemic Tiquilia nesiotica, lava cactus, and scattered Scalesia. With some luck, a lava lizard crosses the trail. At the top, the view over the twin bays and the iconic Pinnacle Rock is the reward for the climb. Back at sea level, a snorkel around the coral reef and submerged lava rocks is a good bet for Galapagos penguins and white-tipped reef sharks, with sea turtles and manta rays turning up now and then too.

Rising nearly 148 meters straight out of the Pacific, split by a channel narrow enough to swim or boat through, Kicker Rock is the most dramatic silhouette in the islands. Blue-footed boobies, frigatebirds, and sea lions are often seen around the rock face, and below the surface this ranks among the best diving and snorkeling in Galapagos, with hammerhead and Galapagos sharks a real possibility in the channel.

Also known as Witch Hill, Cerro Brujo greets you with towering cliffs before the dinghy even reaches the beach. Once ashore, you can relax alongside the sea lions, snorkel straight from the sand, or walk to a hidden lagoon where shorebirds work the shallows. Blue-footed boobies, swallow-tailed gulls, and marine iguanas are often somewhere along the shoreline and cliffs too.

Punta Pitt is the only site in the islands where all three Galapagos booby species nest within view of one another: red-foots in the low trees, Nazca boobies on the open cliff-edge ground, and blue-foots further inland. A steep gully climbs to the breeding grounds, where frigatebirds often circle overhead and swallow-tailed gulls round out the colony.

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.