A night-start loop through Volcán Osorno's volcanic slopes in northern Chilean Patagonia
Chile's most emblematic trail running event challenges runners through the volcanic landscapes of Parque Nacional Vicente Pérez Rosales on the slopes of Volcán Osorno. Starting at night from Camping Playa Petrohué on the shores of the turquoise Lago Todos Los Santos, the 100K Ultra Terra accumulates three full vertical kilometers across four major climbs — to the Ski Center on Osorno, La Roca Vulcano, Quebrada Jurásica, and Cerro La Picada — before finishing back at the lake after 25 hours of racing through old-growth forest, volcanic ash, and exposed ridgelines. Variable weather, technical footing on volcanic rock and sand, and remote mountain terrain make this one of South America's most demanding 100K courses.
Recommended for seasoned ultrarunners
Puerto Varas, Los Lagos, ChileDecember 06, 2025
Vulcano Ultra Trail 100K is a loop trail race in Puerto Varas, Los Lagos, Chile, held on December 06, 2025. The course covers 100 km, climbs 6,333 m, and has a 25h cutoff.
| Location | km | Elevation | Cutoff | Crew | Drop bags |
|---|---|---|---|---|---|
Start Start | 0.0 | 194 m | — | ||
Finish Finish | 94.8 | 422 m | 25h8:00 PM +1 |
Aid station details for this race are still being filled in. Cutoffs and access rules come from the race’s own published information and can change — check the official race details before planning around them.
Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.
Camping available at the start/finish area at Camping Playa Petrohué on the shores of Lago Todos Los Santos. Parking also available near the start.
Temperatures can drop to -5°C with wind and snow at higher elevations, particularly on the overnight climb to the Ski Center
December weather in southern Chile is unpredictable — conditions can swing from summer heat at the lake to winter cold on the volcano within the same race
Exposed ridgelines above Petrohué experience strong, gusty winds — particularly on Quebrada Jurásica and the Paso Desolación sections
No required gear specified
No recommended gear specified
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