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Descend 500 feet into the heart of Trillizos on Isabela Island and walk the crater floor where quartz and petrified lichens whisper the volcano’s long history. This 4–5 hour expedition pairs technical rappel with sweeping ocean rim views.
Descend 500 feet into the heart of Trillizos on Isabela Island and walk the crater floor where quartz and petrified lichens whisper the volcano’s long history. This 4–5 hour expedition pairs technical rappel with sweeping ocean rim views.
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Operated by Enchanted Islands · Puerto Villamil, Galápagos Province
The ground opens to rock and shadow as you clip in at the crater rim of Trillizos on Isabela Island. Wind off the Pacific lifts salt and cooled volcanic dust while guides check knots, helmets, and lights; below, a 500-foot throat drops into chambers polished by time. Descending is steady work—each foot placement counts as the volcano’s walls close around you and the air cools.
challenging.
4–5 hours.
Moderate to good cardiovascular fitness and leg strength needed for rappelling, walking on uneven rock, and steep return climbs.
The descent is approximately 500 feet; the full tour, including walking inside the crater and returning to the rim, runs about 4–5 hours.
Basic rappelling experience is helpful, but guides provide full instruction and safety equipment; participants should be comfortable on ropes and steep ground.
Not recommended for pregnant travelers, those with serious heart or spinal conditions, or anyone who has difficulty walking or climbing uneven, wet terrain.
While the activity focuses on geology, you may spot highland birds and endemic plants along rim trails; marine life is visible from rim viewpoints on clear days.
Trillizos is part of Isabela’s chain of volcanic structures formed by hotspot volcanism; its last major activity dates back hundreds of thousands of years, leaving deep craters and preserved mineral pockets.
The Galápagos National Park regulates visitor access to protect fragile highland ecosystems; stick to trails, avoid touching crystal or lichen formations, and follow guide instructions to minimize impact.
Enchanted Islands operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.
Book with Enchanted Islands
Book directly with Enchanted Islands for the best rates and real-time scheduling.
Reserve Now