A 16 km guided trek across Sierra Negra’s active caldera on Isabela Island. Expect lava tunnels, tuff cones and a 360° viewpoint—plan for rough volcanic terrain and sectional exposure.
More ways to explore the area's outdoor wonders
The wind hits first—cool and mineral-scented—before the landscape fully unfolds: a broad, pockmarked caldera rim that feels more lunar than tropical. Walking here is rhythmic and direct: footfalls over basalt, the hiss of loose scoria, and the caldera’s enormous fissures daring you to peer into the volcano’s raw architecture.
Difficulty
moderate
Duration
6 hours
Fitness Level
Suitable for hikers with moderate fitness who can manage 16 km on uneven, rocky ground and short steep sections.
Wildlife
History
Sierra Negra’s caldera and recent eruptions (including 2005 and 2018) shaped much of Isabela’s northern flank; scientific study of these eruptions informs modern volcanology in the islands.
Conservation
The area is protected by the Galápagos National Park—stay on marked trails, avoid collecting samples, and minimize disturbance to endemic plants and wildlife.
Reserve your spot on the Trekking experience at Sierra Negra Volcano today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Hydrate for hours on volcanic rock
Carry at least 2–3 liters of water and sip regularly—there’s no reliable water on the route.
Wear grippy boots
Sturdy, high-traction hiking boots reduce slips on loose scoria and broken lava surfaces.
Protect from the sun and wind
Bring a wide-brim hat, high-SPF sunscreen and a lightweight wind shell for exposed stretches.
Pace for uneven terrain
Plan slower than flat-ground pace—16 km on lava fields takes time and energy; use trekking poles if available.
Sturdy hiking boots
Protect ankles and provide traction on loose volcanic rock.
Hydration system (2–3 L)
Sustains energy and prevents dehydration on exposed stretches.
Windproof shell and layers
Blocks cold gusts on the rim and allows quick adjustment to changing conditions.
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Sun protection (hat, sunglasses, SPF 30+)
High UV exposure on open lava fields makes strong sun protection essential.
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