Caving and Spelunking are growing sports around the world. While much of the earth and even the ocean have been explored, the underground crevasses around the world are relatively unscathed. In places from Laos to Brazil the traveler is looking for new ways to spend their time and the extensive cave systems are hard to ignore. While the numbers of people who are exploring underground caves and tunnels is still relatively small compared to say, mountain biking, the tourist bubble is slowly starting to encompass this still unknown activity.

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