Glacier Grey is a 270 km2 (168m2) glacier located at the north end of Lago Grey. The easiest way to experience Glacier Grey is aboard the Grey II, which takes travelers from Hosteria Lago Grey, through a field of house-sized chunks of neon blue ice, to the 40-meter-high face of the glacier. The boat departs twice daily, at 8am and 3pm, and operates year-round. Prices vary by season and number of passengers (see www.turismolagogrey.com; or call 56.61 712100). Alternatively, hikers can follow the Glacier Grey trail, which begins at Refugio Pehoé (by taking a catamaran across Lago Pehoé; $16 one-way) and offers breathtaking views of both Lago Grey and Glacier Grey. For an up-close, and unforgettable, look at the deep blue crags and caverns, Rutas Patagonia (www.rutaspatagonia.com; (56)-61-613874) straps crampons on your feet to hike on the glacier's surface for about $140.

Boating

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