Great Wolf Resorts is the worlds largest chain of indoor water parks. The company owns and operates its family resorts under the Great Wolf Lodge brand. The company is headquartered in Madison, Wisconsin. In addition to a water park, each resort features specialty restaurants, arcades, spas, fitness rooms and children’s activity areas including Yoga and bowling. Black Wolf Lodge was founded in 1997 by brothers Jack and Andrew "Turk" Waterman, the original owners of Noahs Ark water park in Wisconsin Dells, Wisconsin. Black Wolf Lodge was purchased by The Great Lakes Company in 1999. Later that year, founder and chairman Bruce Neviaser changed the name to Great Wolf Lodge and the company headquarters were established in Madison, Wisconsin. In 2001, the company built a second location in Sandusky, Ohio, and named it Great Bear Lodge. When a third location opened in 2003, the decision was made to place all future parks under the Great Wolf Lodge banner. The name of the Ohio location was changed to Great Wolf Lodge in 2004. The chain has since added twelve additional locations and has one in development. On May 1, 2012, Great Wolf announced they were adding a new amenity or attraction to each of their resorts in time for the summer season. In addition, they spent over $4 million renovating the companys first two locations – Wisconsin Dells and Sandusky.