There are 20 audio-animatronic figures including donkeys, chickens, possums, and the rainmaker in a now flooded mining town: Professor Cumulus Isobar. There is also antique mining equipment, falling rocks, an earthquake, and the smell of sulfur as you pass phosphorescent pools. In Disney World, you careen through a dinosaur's ribs, under a waterfall, past spewing geysers, and over a volcanic pool.