Like sleeping in the fetal position, sliding through a tube of water harkens back to one of humankind's earliest collective memories—the first time we made the national news by falling into a well. Relive the good old days with today's Groupon: for $12, you get one admission to World Waterpark (up to a $36.95 value) at the West Edmonton Mall. This Groupon is only good until the end of February 2011, after which time inland mariners must resort to frozen fishin' holes to maintain their aquatic routines. Voted Best Canada Family Attraction by readers of WestJet's up! magazine, World Waterpark is a watery oasis of entertainment with the world's largest indoor wave pool and the tallest indoor permanent bungee tower. Once suited up, aqua adventurers can slip and slide their way down 17 water slides and play-features filled with balmy 28-degree Celsius water. As an indoor amusement park, this tangle of tubes is perfect for year-round fun and is a convenient tropical escape from harsh weather or aquaphobic in-laws.