Fodor's Expert Review Rush Mountain Adventure Park

Stalagmites, stalactites, flowstone, ribbons, columns, helictites, and the "Big Room" are all part of the worthwhile tour into this privately owned cave. In 1876, miners found the opening to the cave while digging a flume into the mountainside to carry water to the gold mines below. The cave was opened to the public in 1927, just before the carving of Mount Rushmore began. The attraction also features the Soaring Eagle Zipride, Rushmore Mountain Coaster, Wingwalker Challenge Course, and other theme-park-style activities.