Technically within park boundaries, but also within walking distance of Ushuaia, the Glaciar Martial is the area’s best single hike, offering expansive views of the Beagle Channel and even the jagged peaks of Chile’s Isla Navarino.

Reached by the zigzag Camino al Glaciar (also known as Luis Martial) that climbs northwest out of town, the trailhead begins at the Aerosilla del Glaciar, the ski area’s chairlift, which operates 9 a.m.–7 p.m. daily. The 1.2-kilometer chairlift (US$6 pp) reduces the two-hour climb to the foot of the glacier by half.

In summer there are occasional minibuses to the lift (9 a.m.–9 p.m., US$7 round-trip) with Pasarela, Eben Ezer, and Bellavista, leaving from the corner of Avenida Maipú and Juana Fadul. Although it is easy to follow, the trail—especially the middle segment—is steep, and the descent requires particular caution because of loose rocks and soil. There is no admission charge to this sector.