Just sit right back and you’ll hear a tale…a tale of the shrimp boat Miss Tilly, journeying from Safen Sound, Florida. During a fierce typhoon, the tiny ship was tossed to the peak of the volcanic mountain, Mount Mayday, which became a source of many fantastic waterslides. Surrounding the mountain, a 56-acre topsy-turvy tropical paradise was formed—full of waterways, rivers, rapids, and slides. That story, developed by Disney’s Imagineers, is the background for Walt Disney World’s Typhoon Lagoon water park, which opened on this day in 1989. Typhoon Lagoon guests can glide down five story waterslides, splash around in the world’s largest wave pool and snorkel with real live sharks.