Kalahari Resorts in Wisconsin Dells, Wisconsin delivers a “world-away” waterpark resort and conference experience beyond expectations. The authentically African-themed Kalahari Resorts, privately owned by the Nelson family, are home to America’s largest indoor waterparks. All Kalahari Resorts feature well-appointed guest rooms, full-service Spa Kalahari, a fully equipped fitness center, on-site restaurants, unique retail shops and a state-of-the-art conference center.