Climb Isabela’s Sierra Negra for a direct view into one of the world’s largest volcanic craters. This 5–6 hour guided hike covers about 17 km round-trip, pairing raw geology with island wildlife and sweeping Pacific views.
More ways to explore the area's outdoor wonders
You stand on the ash-black trail as wind from the Pacific tugs at your hat, the caldera opening ahead like a raw, breathing landscape. Low cloud scud across a rim that drops into a crater spanning roughly 10 km, and the trail climbs with volcanic gravel underfoot—every step a negotiation with the island’s heat and sudden breezes.
Difficulty
moderate
Duration
5–6 hours
Fitness Level
Moderate level of fitness: several hours of steady uphill on uneven volcanic terrain with short steep sections.
Wildlife
History
Sierra Negra’s broad caldera and repeated eruptions—including documented activity in 2005 and 2018—have shaped Isabela’s landscape and influenced local settlement patterns.
Conservation
The trail runs inside Galápagos National Park rules: stick to paths, avoid introducing foreign materials, and follow guide instructions to minimize disturbance to fragile volcanic soils and endemic species.
Reserve your spot on the Hiking Tour to Sierra Negra Volcano today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Start at first light
Begin early to beat the wind and heat; mornings deliver the clearest crater views and calmer trails.
Bring 2–3 liters of water
There are no reliable water sources on the route; hydration is critical for the 5–6 hour trek.
Sturdy boots for loose scree
Loose volcanic gravel can be slick—ankle-supporting boots and a hiking pole improve stability.
Follow your guide and park rules
Trails are fragile and wildlife accustomed to minimal human contact—stay on the path and maintain distance from animals.
Sturdy hiking boots
Provide traction on loose volcanic scree and protect ankles on uneven ground.
Windproof shell
Blocks sudden high winds on the exposed crater rim and keeps you warm during breaks.
Sun protection (hat, sunscreen, sunglasses)
Equatorial sun is strong; broad protection reduces risk of sunburn and glare.
2–3 L hydration system & snacks
Sustains energy and hydration during the multi-hour climb where no services exist.