15-Day Northern, Western & Southern: Isabela Wetlands' Flamingos

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.

A short crossing from Puerto Baquerizo Moreno on San Cristobal, Isla Lobos takes its name from the sea lion colony that calls it home, and doubles as a seasonal nesting ground for blue-footed boobies. Frigatebirds have begun nesting here in recent years too, and fur seals turn up now and then. The walk covers roughly 850 meters of mixed rocky and sandy 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.

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.

Darwin Bay sits inside the flooded caldera of Genovesa, and a wet landing on its white coral-sand beach puts you right in the middle of a working seabird colony. Great frigatebirds display along the shore, males inflating scarlet throat pouches to catch a female's eye, and red-footed boobies nest low in the surrounding trees and shrubs, unusual for a booby. Nazca boobies are just as much a fixture here, while blue-footed boobies are a rarer, luckier sighting. Swallow-tailed gulls and red-billed tropicbirds work the cliffs nearby. If you're a confident swimmer, the bay's calm water is a good place to snorkel or kayak afterward, with a chance of white-tipped reef sharks and sea turtles along the rocky shore.

A stone stairway carved into the cliff climbs to a wide plateau holding one of Genovesa's largest seabird colonies. The trail passes through a small Scalesia forest, home to the short-eared owl, one of the few predators on the island, before reaching cliffside colonies where Nazca and red-footed boobies nest side by side, frigatebirds wheel overhead, and thousands of storm petrels dart in and out of cracks in the lava. A small colony of fur seals sometimes gathers near the landing. Red-footed boobies nest in only a handful of places across the archipelago, and this is one of them.

Chinese Hat, or Sombrero Chino, is a small islet of delicate lava and spatter cones just off Santiago's southeastern coast. A narrow channel of turquoise water between the islet and the Santiago shoreline makes for excellent snorkeling, where sharks, sea lions, and rays are regularly reported, and a Galapagos penguin occasionally turns up too.

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.

Set on the grounds of the Galapagos National Park Service on Santa Cruz, this station was once home to Lonesome George, the last known tortoise of the Pinta subspecies. A series of interpretive buildings walks you through the conservation science underway across the islands, and the surrounding native vegetation is a good place to look for Darwin's finches going about their business.

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.

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.

Just outside Puerto Villamil, the Isabela Wetlands are a network of lagoons and mangrove swamp that draw a distinctive mix of shorebirds. White-cheeked pintails, black-necked stilts, great egrets, American flamingos, sanderlings, and more move through these lagoons, making the boardwalk trail through swamp and cactus scrub one of the better birdwatching walks on Isabela.

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.

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.

A zodiac ride along Tagus Cove's cliffs is the first stop, tracing walls carved with the graffiti of sailors and whalers going back over a century. Charles Darwin himself anchored here in 1835. Watch the rock for Galapagos penguins and flightless cormorants before you land and set off on a gently climbing trail, roughly 30 minutes each way, to a viewpoint over Darwin Lake, a crater lake saltier than the ocean itself. Along the way, look for land birds that are easy to miss: ground and tree finches, yellow warblers, large-billed flycatchers, and, with a little luck, the tool-using woodpecker finch. Land iguanas and giant tortoises sometimes cross the path as well. Back at the water, most visits close with a dinghy ride or a snorkel along the submerged cliff wall, depending on the day's plan, with another good chance at penguins and cormorants gliding by.

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 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.

A geology stop first and foremost. A wet landing on a white coral-sand beach leads out onto a pahoehoe lava field that flowed less than a hundred years ago, its surface still holding the ropy, swirled texture it cooled into, a favorite for photographers. Tiny pioneer plants are just beginning to colonize the cracks in the rock. Bring your camera for the landscape rather than your binoculars here.

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 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.

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.

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, then on to a lava tube you can climb down into by ladder. 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.