When the Humboldt Current cools the western Galápagos archipelago each boreal summer, Mola mola rise to cleaning stations at Punta Vicente Roca and other Isabela Island drop-offs on liveaboard-only itineraries. These are deep, current-swept blue-water dives where ocean sunfish share the water column with Galápagos penguins, sea lions, and the larger sunfish species Mola alexandrini. July and August sit at the heart of the most reliable mola weeks on expedition vessels departing from San Cristóbal or Santa Cruz.
When the Humboldt Current cools the western Galápagos archipelago each boreal summer, Mola mola rise to cleaning stations at Punta Vicente Roca and other Isabela Island drop-offs on liveaboard-only itineraries. These are deep, current-swept blue-water dives where ocean sunfish share the water column with Galápagos penguins, sea lions, and the larger sunfish species Mola alexandrini. July and August sit at the heart of the most reliable mola weeks on expedition vessels departing from San Cristóbal or Santa Cruz.
Up to 92% sighting chance in Galápagos (Vicente Roca, Isabela). Best months: July, August, September.
The Humboldt-cooled window from May through October delivers the best ocean sunfish encounters, with July and August offering peak probability at Vicente Roca and western Isabela sites.
No. Vicente Roca and most reliable mola sites are reached only on multi-day liveaboard itineraries. Day boats from populated islands rarely cover the distance or dive profiles required.
Advanced Open Water and comfort in strong current at 20 to 30 metres are standard. Many mola encounters happen on blue-water drifts along thermoclines rather than static reef profiles.
Galápagos penguins, flightless cormorants, sea lions, sunfish relatives Mola alexandrini, and occasional manta rays share the same cold, nutrient-rich water during Humboldt season.
Eight-day liveaboard itineraries with mola mola focus typically run 4,800 to 7,200 USD per person (2026 prices), excluding flights to Ecuador and the Galápagos park entrance fee.
