A high-altitude day that combines vehicle access with a steep, non-technical hike to the fumarolic craters of Lascar. Expect dramatic crater views, wildlife sightings, and altitude-driven challenges over a 9–10 hour outing.
More ways to explore the area's outdoor wonders
You arrive before sunrise and the salt-flat chill bites at your cheeks. Fingers numb around a thermos, you peer across the Lejía lagoon—a broad, glassy mirror at 4,200 m—while the sharp silhouettes of Chiliques, Aguas Calientes and Lascar itself cut the horizon. Steam from the volcano's central crater threads into the sky as the first light paints sulfur-streaked rock.
Difficulty
challenging
Duration
9–10 hours
Fitness Level
Good cardiovascular fitness and prior high-elevation hiking experience; acclimatize first.
Wildlife
History
Lascar’s repeated activity has shaped local landscapes and influenced Atacameño movement and ritual practices across the high plateau.
Conservation
The high Andean wetlands and puna are fragile; stick to trails, pack out waste, and respect wildlife distances to limit impact.
Reserve your spot on the Lascar volcano today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Acclimatize before ascent
Spend 1–2 days in San Pedro de Atacama at altitude to reduce risk of AMS; ascend slowly and monitor symptoms.
Hydration and snacks
Carry 2–3 liters of water and high-energy snacks—the thin air increases dehydration and energy burn.
Watch for sulfur fumes
Fumaroles emit sulfur; avoid low-lying gas pockets and leave the crater rim if you feel respiratory irritation.
Sun protection is crucial
Use SPF 50+, sunglasses and a brimmed hat—the high-altitude sun is intense even in cold conditions.
Insulating mid-layer (fleece/down)
Retains warmth during cold, windy high-altitude periods.
Sturdy trekking boots
Support and traction on steep, rocky slopes and scree.
Sunglasses and high-SPF sunscreen
Protects against strong UV and reflective glare at altitude.
Water reservoir (2–3 L) and snacks
Prevents dehydration and keeps energy steady during the long day.