Dazzling fjords and vertiginous Andean peaks cover Chile's best-known region, turning this slim swath of land into a playground for skiing, whitewater rafting and trekking. To the north lies San Rafael Lagoon National Park with its impressive ice fields. In Patagonia's southern stretch, the city of Punta Arenas is the gateway to Torres del Paine National Park, which attracts serious climbers and casual day hikers to its granite peaks, glaciers and waterfalls.