Where and when to see marine iguanas

The world's only sea-going lizard, found only in the Galápagos, where it dives to graze algae in cold water.

This guide documents sightings in 1 Good Dives region.

Colored-pencil illustration: one Galapagos marine iguana (Amblyrhynchus cristatus).

Marine iguanas sighting calendar

Calendar months, every year

JanFebMarAprMayJunJulAugSepOctNovDec
GalápagosEcuador●●●●●●●●●●●●

Peak = best odds · ● = regularly seen · blank = unlikely.

Calendars describe animal presence, not weather or site access; check each region’s dive season. For grouped animals, a marked month may apply to only one member of the group. Sightings vary by site and dive.

Explore all 1 documented region