In the second half of the 20th century, tourism became an ever more important part of Patagonia's economy. Originally a remote backpacking destination, the region has attracted increasing numbers of upmarket visitors, cruise passengers rounding Cape Horn or visiting Antarctica, and adventure and activity holiday-makers. Principal tourist attractions include the Perito Moreno glacier, the Valdés Peninsula, the Argentine Lake District and Ushuaia and Tierra del Fuego (the city is also a jumping-off place for travel to Antarctica, bringing in still more visitors).