
challenging
8 hours
Requires high aerobic fitness and comfort with long ascents, uneven terrain, and river crossings.
A full-day small-group trek from Ushuaia takes hikers through peat bogs and Fuegian forest to the Témpanos lagoon and a close approach to Vinciguerra Glacier. Expect 600 m of climbing, variable mountain weather, and the chance to circumnavigate an iceberg-strewn lagoon.
A cold wind from the Beagle Channel cuts through the open valleys as the minibus climbs away from Ushuaia. Trees thin, the peat bog widens, and the trailhead appears—a tangle of hoofprints, tussock, and boot paths that lead into the Fuegian forest. The group shoulders packs, checks crampon fit, and steps into a landscape that feels impatient: rivers daring you to cross, creeks pushing the route higher.

Bring a waterproof shell and an insulating midlayer—windproofing is more important than heavy insulation on the ascent.
Use trekking poles for river crossings and steep scree; they dramatically reduce fatigue and slipping risk.
Crampons may be required near the glacier—practice putting them on before you need them and listen to guide instruction.
Start the day well-hydrated and carry at least 1.5–2 L of water—cold wind masks fluid loss.
Valleys around Ushuaia were shaped by ice advances and used historically by Yaghan communities and later by explorers accessing the Patagonian interior.
Guides emphasize Leave No Trace on fragile peat soils and restrict off-trail movement to prevent erosion; respect seasonal wildlife and avoid disturbing nesting birds.
Stiff-soled boots give ankle support on rooty peat, scree, and icy approaches.
Protects against Patagonian wind and sudden rain or snow.
Traps warmth at the lagoon where temperatures drop near ice and wind.
Help with river crossings and steep, loose ground on the ascent