Often referred to as “Bird Island,” Genovesa supports immense colonies of seabirds, making it one of the most densely populated bird habitats in the Galápagos.

An Island Full of Birds

Genovesa is a sanctuary for seabirds, and nowhere is that more obvious than along the Prince Philip’s Steps trail. From the moment we landed, it felt like we were walking through a live aviary. Every few feet revealed different birds. First, we saw the Nazca boobies. These large, white seabirds with black-tipped wings and yellow eyes are one of the iconic “Big 15” species of the Galápagos. We saw both attentive parents and their fuzzy, down-covered chicks. Some of the chicks were already testing out their wings, flapping them clumsily as they stood in place.

The Nazca boobies didn’t seem to care about our presence. Some sat in the middle of the trail, forcing us to detour. They didn’t beg for food or try to flee. It was clear we were in their space. They looked at us with curiosity, as if evaluating our behaviour. One was even attracted to the bright coloured shoes of someone in our group. We joked at the bird was imprinting on them.

We also encountered several red-footed boobies up close (another Big 15 of the Galápagos ). Unlike the Nazca or blue-footed boobies, red-footed boobies are smaller and more agile in flight, using their dexterity to catch flying fish. They are also the only booby species in the Galápagos that nest in trees, thanks to their strong, grasping feet. Their nesting behaviour allows them to avoid the crowded ground-level colonies favoured by other species.

We also observed many great frigatebirds nesting. We had the fortunate of seeing the males with their red throat sacs inflated like balloons. However, we didn’t see the closely related magnificent frigatebird, which looks nearly identical but differs subtly in iridescent sheen and eye ring.

Further along the trail, we also spotted one of the iconic Darwin’s finches. This one was a brown finch, and though we knew it belonged to one of the local species, it was remarkably difficult to tell whether it was the small, medium, or large ground finch. These species differ primarily by the size and shape of their beaks, which have adapted to different types of seeds. In the field, even seasoned naturalists can find it tricky to differentiate them without observing feeding behaviour or using binoculars to compare subtle proportions. Genovesa is home to several of these species.

Spotting Rarities with a Naturalist’s Eye

We were lucky to be hiking with someone in our group who had spent decades as a professional naturalist. Her eye for detail helped us spot species we would have otherwise missed, including Galápagos doves nestled in a rocky crevice.

Our naturalist companion was able to spot the elusive short-eared owl. The short-eared owl is the only owl on Genovesa and is a daytime hunter, adapted to prey on storm petrels that nest in the island’s lava crevices. Seeing one is considered a highlight by bird enthusiasts.

She spotted this owl even when swarms of birds circled the crater. From a distance it looked like hundreds, maybe more.

I asked the guide how often people got pooped on by birds, and he said “all the time”.

How Did the Birds Get Here?

As we observed the vast diversity of birdlife on Genovesa, a natural question arose: how did all these birds get here in the first place? Genovesa, like all the Galápagos Islands, is of volcanic origin and has never been connected to any continent. That means every species had to arrive by sea or air. In the case of birds, it’s a mix of seabirds and land birds that flew in from the mainland over generations.

Seabirds like the Nazca booby, red-footed booby, and great frigatebird are strong fliers capable of covering vast distances over open ocean. They likely reached the archipelago by chance during migration or storms, eventually settling and breeding. Unlike land birds, which evolved in relative isolation after their ancestors arrived, many seabirds still travel between islands or even back to mainland South America during their lifetimes.

Land birds, such as the Galápagos dove and finches, probably arrived in earlier periods via rafting or wind dispersal and then adapted to island life. Their more limited range makes their evolution within the islands more distinct and well-documented.

Circumnavigating the Crater

After the hike, we boarded zodiacs for a ride around the inner edge of the caldera to get a better sense of its geologic origins. The steep, eroded walls of the crater revealed layers of volcanic tuff – compressed ash from past eruptions. In places, erosion had carved angular overhangs and caves. The crater rim is breached on one side, allowing the ocean to flood in and creating a calm anchorage for small vessels like ours.

Along the cliff face and the trees above, we continued to see more birds nesting. There were even some marine iguanas resting on rocks.

Courting Frigates and a Nap in the Sand

After lunch, we embarked on another short nature. Right as we began, we passed a sea lions sprawled out comfortably on the sand, fast asleep. They lay there without a care in the world, entirely unfazed by our presence. Many Galápagos animals are not concerned with human visitors, as long as we respect their space.

As we continued, we came across a group of nesting frigatebirds in full courtship display, with their bright red throat sacs fully inflated. They flapped their wings, made rattling calls, and shook their inflated sacs in dramatic fashion – all in an effort to catch the eye of a passing female. The sounds and motions were loud and theatrical.

Our guide mentioned research into their mating behaviours, including experiments where scientists altered the appearance of the sacs by painting them blue. Surprisingly, the colour change didn’t seem to affect female interest. In another case, a researcher punctured the sac to study healing – and it reportedly repaired itself within a few days. These stories underscored how much remains unknown about even the most visible species.

A Cloudy Snorkel and Playful Sea Lions

We ended the day with a snorkel along the rocky beach. Unfortunately, the water was too cloudy to see much underwater life. The coarse volcanic rocks made walking on the beach difficult; a few of us got small stones lodged in our flippers, which rubbed uncomfortably against our skin.

But the snorkelling wasn’t the real highlight. Back on shore, a group of sea lions came ashore and began to play. They chased one another, nipped each other’s flippers, rolled onto their backs, and flopped in and out of the surf in an endless loop of games. Their energy and antics entertained us for nearly twenty minutes.

One thing we noticed throughout the trip was the near absence of native terrestrial mammals or amphibians on the islands. Unlike birds or reptiles, which can fly or survive extended periods at sea, most land animals couldn’t make the crossing from the South American mainland. The Galápagos are over 900 kilometres from the coast, and animals unable to float, fly, or raft on vegetation simply never had the chance to colonize these remote islands.

See here to view the full photo album from our day on Genovesa Island.

Arriving in the Galápagos

Baltra’s arid, utilitarian appearance and developed municipal infrastructure contrasted with our mental image of a remote, untouched natural paradise. We would soon learn that while large portions of the archipelago are protected reserves, people actually live on some of the islands. Once we left the urban areas, we began to see the pristine nature of the islands.

The Galápagos has strict biosecurity protocols in place to preserve its delicate ecosystem. Visitors are not permitted to bring raw items like fresh fruit from the mainland, a necessary precaution to avoid introducing non-native species that could disrupt the islands’ fragile balance. In addition, all visitors must register with the Ecuadorian government prior to arrival and pay a park entry fee (included with the cruise), a process designed to regulate tourism and support conservation efforts. After passing through inspection, we boarded a bus that took us from the airport to a nearby pier. From there, we transferred to a zodiac – a rigid inflatable boat – which ferried us across to our cruise ship waiting offshore.

Life Onboard the Ship

Our ship, the Santa Cruz II, carried about 80 passengers. We were joining a group that had already been on board as part of a longer itinerary. Compared to our past experiences on Seabourn, this ship was a lot more modest. But as the expedition leader reminded us, the point of a Galápagos voyage is to spend as much time as possible off the ship, exploring.

There were no locks on our stateroom doors. We simply closed them behind us whenever we left. In an environment like this, where isolation and shared purpose define the experience, security concerns seem almost out of place. Each of us also received a waterproof backpack and a reusable bottle made from reclaimed ocean-bound plastic – a thoughtful gesture in line with the region’s conservation ethos.

We also began to meet our fellow passengers, many of whom came from the UK, Australia, and Canada. The demographic leaned older, with many retirees onboard, and we found ourselves among the youngest people on the ship. Everyone was friendly and curious, and conversations often revolved around past travels, conservation, and natural history. Dining onboard was communal by default – assigned seating was not the norm – so we rarely had a chance to eat on our own. This format naturally led to many interactions and opportunities to hear stories from all walks of life.

The Big 15 of the Galápagos

After spending the first few hours on the ship getting acquainted with it and going through the safety lectures, the expedition crew introduced us to the Galápagos Big 15 – a list of the most iconic and unique wildlife species in the islands. These include creatures such as the blue-footed booby, Galápagos albatross, and marine iguana. Some, like the Galápagos tortoise and flightless cormorant, exist nowhere else on Earth.

First Landing: Las Bachas, Santa Cruz Island

That same afternoon, we prepared for our first excursion: a wet landing at Las Bachas beach on Santa Cruz Island. A wet landing involves disembarking directly into the water about knee deep and wading up to the shore – a practical approach given the lack of deepwater docks in the Galápagos. The sand here was strikingly white and soft, composed largely of decomposed coral that had been broken down by wave action, fish, and natural erosion over time – a common process in tropical marine environments where coral reefs dominate the coastal ecosystem.

The terrain transitioned quickly from beach to rocky outcrops, with jagged volcanic rock underfoot. These islands were formed by a volcanic hotspot beneath the Nazca Plate, and the evidence of their fiery origins is everywhere – from the black basalt fields to the jagged cliffs that define much of the coast.

First Wildife Encounters

Our first encounter with Galápagos Big 15 came quickly: marine iguanas. Unique among lizards, these reptiles forage for algae underwater and can remain submerged for several minutes at a time. Their flattened tails help them swim, and they often warm themselves on the rocks after a dive. As they expel excess salt through specialised nasal glands, white crystalline patches form around their mouths – a distinctive trait that gives them a crusted appearance. Their dark colouring provides camouflage against the lava, though it also makes spotting them more challenging.

They are the only sea-foraging lizards in the world, and they use their strong, clawed feet to cling to rocks on the seafloor while feeding. Their sharp claws help them grip submerged volcanic surfaces as they graze on marine algae, even amid ocean swells and currents. This adaptation allows them to dive and walk along the bottom rather than swim continuously, conserving energy as they feed on algae growing on submerged rocks and reefs along the Galápagos coast.

Great frigatebirds soared above, using rising columns of warm air known as thermals to gain altitude with barely a wingbeat. The males of this species are known for their red throat pouch, which they inflate during mating displays.

As we moved along the beach and volcanic rock, we came a great blue heron standing on the black basalt. – it’s one of the largest wading birds in the archipelago. With its long neck and dagger-like bill, the heron watched the shallows for any movement. These birds hunt by remaining still for extended periods before striking quickly at fish or crustaceans in the intertidal zone.

The lava gull is endemic to the Galápagos and is considered one of the rarest gulls in the world. It has a dark head, sooty brown body, and a sharp bill, and it often scavenges or opportunistically steals food from other birds and even humans.

This small, dark heron is frequently seen stalking the shallows with deliberate steps, as shown here on an algae-covered rock. They blend in well with the coastal environment and are skilled fishers, often remaining perfectly still before darting at prey.

This brightly coloured songbird stands out starkly against the dark volcanic rock. Male yellow warblers are especially easy to spot due to their vivid plumage and are often heard before they are seen, thanks to their high-pitched, melodic calls.

Vivid Sally Lightfoot crabs clung to the stones, with their red and orange shells flashing brightly against the dark rock. In the past some local communities and visiting sailors did eat these crabs, though they were not a staple food source due to their small size and challenging preparation.

Dotted along the sand were small, round holes were their burrows. They crabs dig into the soft coral sand to create sheltered retreats where they can hide from predators and the heat of the sun. At the first sign of movement, they scuttled quickly back into these holes, disappearing with remarkable speed.

Lava lizards darted between rocks. These reptiles are sexually dimorphic, with males often displaying more vibrant colours and performing push-up displays to assert dominance or attract mates. They play an important role in the island ecosystem, helping to control insect populations and contributing to seed dispersal through occasional plant consumption. This makes them both predator and passive participant in the island’s delicate ecological balance.

Though we didn’t see any sea turtles, we came across their tracks, which nest on Las Bachas. The beach gets its name from the remnants of American military barges abandoned here after World War II. Though the rusting metal is long gone, the name “Las Bachas”—a corruption of “barges” – remains.

After our walk, we had a chance to swim. We brought our own goggles and explored just below the surface. Though we hadn’t been issued our full snorkelling gear yet, the visibility was decent. We managed to spot a curious eel weaving through the rocks and a shy pufferfish hovering near the seabed.

Night-Time Hunters Beneath the Hull

That evening, we mistakenly ended up at the German-language briefing for the next day’s excursion. I had listened to the German announcement, thinking that was where we were supposed to go and in my mind I didn’t even realize I was mixing up the langauges. We got a laugh out of the mix-up later.

We were told by other travelers that at night, we may get to see animals following the light of the boat. We took a peek and got to see some pelicans lingering near the stern, using the artificial glow to spot fish drawn to the illumination. Below them, we caught glimpses of reef sharks weaving in and out of the light, using the same opportunity to hunt more efficiently.

Unlike most cruises where the first day is reserved for settling in, we dove straight into exploration. From the very first landing, the Galápagos began unfolding its natural complexity, offering glimpses into an ecosystem both ancient and finely balanced.

See the full photo album from our first day in the Galápagos here.