About 18 kilometers west of Ushuaia , Parque Nacional Tierra del Fuego  hugs the Chilean border as its 63,000 hectares stretch from the Beagle Channel north across Lago Fagnano (Kami) . Elevations range from sea level to 1,450 meters on the summit of Monte Vinciguerra.
The park has a maritime climate, with frequent high winds. Rainfall is moderate, about 750 millimeters per year, but humidity is high, as cool temperatures inhibit evapotranspiration—the summer average is only about 10°C. The record maximum temperature is 31°C, while the minimum is a fairly mild -12°C. At sea level, snow rarely sticks, but higher elevations have permanent snowfields and glaciers.