The Galápagos hold endemic species across 13 main islands with Darwin's blue-footed boobies, marine iguanas swimming alongside snorkellers, giant tortoises at El Chato, and the Sierra Negra crater on Isabela.
Warm wet season with calm seas, water at 25°C for snorkelling, marine iguanas active, and sea turtles nesting on Tortuga Bay's white sand.
Cool dry season with Humboldt current bringing nutrient-rich water and peak wildlife concentrations, but the air feels chillier and seas can be choppy.
Whale shark season at Wolf and Darwin islands for advanced divers, sea lion pup season, and humpback whales passing through Galápagos waters.
Cooler dry season with peak penguin sightings on Bartolomé and the largest concentration of marine life around the islands' key sites.