Genovesa island: the bird island
Ask a naturalist guide for their favorite island and Genovesa comes up more than any other. It is a collapsed volcanic caldera in the far northeast, a horseshoe of cliffs around a flooded bay, packed so densely with seabirds that everyone just calls it the bird island. Red-footed boobies nest in its trees by the hundreds of thousands, great frigatebirds inflate their red pouches over its trails, and the world’s only nocturnal gull breeds here. No ferries, no town, no day tours: Genovesa is cruise-only, and it anchors northern itineraries.
Key facts
- Area: 14 km², highest point 64 m. Low and flat; the horseshoe shape comes from the whole island being the rim of a collapsed caldera flooded by the sea (Darwin Bay fills the center).
- Nickname: the bird island, earned many times over.
- Its volcano has not erupted in recorded history, but the island is not considered fully extinct.
- Access: cruise only, on northern itineraries: it is a long navigation from the central islands, which is why short itineraries rarely include it. No airport, no ferry, no day tours from Santa Cruz.
The visitor sites, and what you can do at each
Darwin Bay
The caldera’s flooded interior: a wet landing onto a coral-sand beach, then a short trail through mangroves and saltbush where red-footed boobies nest in the trees: the only booby that nests arboreally, and this is the largest colony of the species on the planet. Great frigatebirds nest alongside, swallow-tailed gulls on the cliffs, and sea lions crowd the beach itself. Snorkeling is allowed inside the bay, which is sheltered and usually calm; hammerheads occasionally pass through the crater’s submerged mouth.
El Barranco (Prince Philip’s Steps)
On the bay’s south side: a steep stairway cut into the cliff, named for Prince Philip after his visits, leads to the plateau above, where a trail crosses palo santo forest to a storm petrel colony of extraordinary density. Two petrel species nest in the lava cracks, and the short-eared owl hunts them here by day, an evolutionary subplot guides love to explain. Nazca boobies nest along the rim; at the cliff edge, tropicbirds pass below eye level. Snorkeling in the caldera’s mouth can bring hammerheads and manta rays through the cold water outside.
What you cannot do
Both sites are trail-walks plus beach and snorkel; there is no free roaming, and the cliffs are closed beyond the marked paths. Kayaking is not offered at Genovesa’s sites. The island rewards patience on foot more than activities.
Wildlife highlights
The red-footed booby is the star: the largest colony in the world for the species lives here (200,000 to 300,000 individuals range-wide, with Genovesa holding the biggest share). The swallow-tailed gull, the world’s only nocturnal gull (it feeds on squid far out at sea and navigates by its large dark eye), breeds here year-round. Great and magnificent frigatebirds, Nazca boobies on the plateau edges, Galápagos doves pollinating the soft-spined Opuntia (with no bees on the island, the cactus evolved to use the doves), the small Genovesa marine iguana, and nocturnal short-eared owls hunting petrels in daylight. If it nests in trees, cliffs, or lava cracks in Galápagos, it probably nests here.
How Genovesa is visited
Northern cruises call here for a full day — typically Darwin Bay in the morning and Prince Philip’s Steps in the afternoon, with snorkeling between. Because of the distance (it lies well northeast of the central cluster), it appears on 8-day itineraries and on 5-to-6-day northern routes; many 4-day trips skip it. There is no land-based way to visit, and that will not change: the island is uninhabited and far from any port. Choosing a boat that includes it is mostly a question of itinerary length; our how many days guide shows which lengths reach the north.
Standard entry costs apply: $200 park fee for foreign adults at the airport, plus the $20 transit card before your flight, both in the entry fee guide. For choosing between boat styles, our cruise vs land comparison is the direct next step, and the best time to visit calendar covers frigatebird pouches (March to June) and booby nesting.
Who Genovesa is for
- Birders, full stop. This is the single best island in Galápagos for seabirds, and one of the best on the planet.
- Photographers: booby colonies at eye level, frigatebird displays, petrels swirling at the cliffs.
- Snorkelers who like birds’ view too: calm caldera water with the occasional pelagic visitor.
- Not for: land-based travelers, short itineraries, or anyone who needs a beach-and-swim day over walking. If Genovesa is the priority, say so when booking: itineraries, not boats, decide.
Last verified: September 2026