Where freshwater Lago Roca [1] drains into the sea at Bahía Lapataia, the park’s main sector has several short trails and a handful of longer ones; most of the backcountry is off-limits to hikers. Slightly less than one kilometer long, the Senda Laguna Negra uses a boardwalk to negotiate boggy terrain studded with ferns, wildflowers, and other water-tolerant species. The 400-meter Senda de los Castores (Beaver Trail) winds among southern beeches gnawed to death to form dams and ponds.
The five-kilometer Senda Hito XXIV follows Lago Roca [1]’s northeastern shore to an obelisk that marks the Chilean border. If, someday, Argentine and Chilean authorities can get it together, this would be an ideal entry point to Estancia Yendegaia [2]’s wild backcountry, but at present it’s illegal to continue beyond the marker. From a junction about one kilometer up the Hito XXIV trail, Senda Cerro Guanaco climbs four kilometers northeast up the Arroyo Guanaco to the 970-meter summit of its namesake peak.
From Bahía Ensenada, near the park’s southeastern edge, there are boat shuttles to Isla Redonda (US$15 pp) 10 a.m.–5:30 p.m.
Links:
[1] http://www.moon.com/destinations/chile/southern-patagonia/parque-nacional-los-glaciares/sights-and-recreation/lago-roca
[2] http://www.moon.com/destinations/chile/southern-patagonia/tierra-del-fuego/porvenir/sights/estancia-yendegaia