Santa Cruz Island
The most populated Galapagos island, with the research station, giant tortoises and highland craters.
Updated 31 August 2026
UNESCO World Heritage
Santa Cruz holds Puerto Ayora, the largest town in Galapagos, and is the base most visitors use: the Charles Darwin Research Station sits at the edge of town with its tortoise breeding programme and the remains of Lonesome George, the last Pinta tortoise; the highlands above hold lava tunnels and the Los Gemelos collapse craters in scalesia forest; and private ranches let visitors walk among wild giant tortoises grazing in pasture. The island is the transport hub, with boats to Isabela, San Cristobal and Floreana and day trips to uninhabited islands. Because it is inhabited, it is also where the tension between conservation and a growing town is most visible.
What you'll find
- Giant tortoises in the highlands - wild animals grazing on the ranches.
- The Charles Darwin Research Station - the breeding programme and Lonesome George.
- Los Gemelos craters - twin collapses in scalesia forest.
- Lava tunnels - walkable tubes under the highland farms.
When to go
Year round. December to May is warmer with calmer seas and more rain; June to November is cooler and rougher with better nutrient-rich water for snorkelling. Three days as a base.
Practical notes
Puerto Ayora is a real town with traffic, construction and prices to match an island that imports everything. Park rules restrict where you can go without a guide. Day trips book out. The Darwin Station is a small visit, not a zoo.
Nearby
Tortuga Bay is a walk from town; Baltra airport lies north.
Key facts
Source: Wikidata, item Q713127, read on 18 October 2026.
What to pack for Santa Cruz Island
Chosen from what this place is for. Tap a kit for the full checklist.
- Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
- Your own mask + snorkel - A well-fitting mask is the single biggest comfort upgrade underwater. Find on Amazon
- Quick-dry towel - A microfibre towel packs small and dries in minutes. Find on Amazon
- Rash guard or thin wetsuit - Sun cover on the surface and warmth on longer or deeper dives. Find on Amazon
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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.


