Review for Seven Clans Casino Thief River Falls Review For Seven Clans Casino Thief River Falls Google User Jan 7 '19 at 1:09 Seven Clans is a great place to bring the family, especially in the winter. The water park is excellent. There is something for the whole family with the hot tubs, lazy river, 4 bigger water slides, 5 smaller water slides, zero gravity kids pool and bigger pool. They have plenty of options for food. The casino is alright with plenty of games to play. View full site to comment or like