TheSeven Clans Casino, Hotel and Waterpark in Thief River Falls, MN offers a medium size waterpark to its guests.
The 40,000 sq. ft. indoor water park features 4 large slides, 3 toddler slides, lazy river, wading pool with toys and geysers, giant bucket shower and 2 large Jacuzzi's for the adults.
The Seven Clans Casino is definitely a casino first, but the indoor water park is a nice addition if you would like to include the family on this adventure.
Please note there is a $5 fee for hotel guests and $10 fee for non-hotel guests to use the water park.