Set in an eye-catching building that evokes towering blocks of ice, Glaciarium (glaciarium.com) is an imaginatively designed museum that illuminates the world of glaciers. Atmospherically lit exhibits show how glaciers form, describe commonly found features (icebergs, moulins, dirt cones) and answer questions such as why glacier ice is blue. Other sections cover pivotal explorers and scientists, snow crystals and a run-down of major glaciers in the world. Surprises abound, like the 1956 discovery of a stone fly that lives its entire life on the glacier (its body contains an antifreeze-like substance). The exhibits end with a stark meditation on climate change.
You can also suit up in a furry cape and gloves for the Glaciobar, a blue-lit -10°C bar where nearly everything is made of ice (including the glasses). Sip perfectly chilled cocktails (or soft drinks for the kids) while posing amid ice-carved furniture. Outside, you can enjoy panoramic views over the Patagonian Steppe. There's also a cafe and shop selling Patagonian crafts.
The Glaciarium is 8km from El Calafate (en route to the Perito Moreno glacier). Take the free hourly shuttle from 1 de Mayo (near the Hotel ACA El Calafate) between Av del Libertador and Roca.