The officially recognised global body for Swamp Soccer is Swamp Soccer UK Ltd, based in Scotland. As well as managing the Swamp Soccer World Cup, Swamp Soccer UK has a mission to introduce the sport to other countries. Headed up by Stewart Miller, in the last few years (2011 to 2015) official tournaments have been launched in China (Beijing), Turkey (Istanbul) and India (Mumbai).
Competitive cross-country skiers in Finland have for decades taken to the swamps for endurance training, which gave some folks an idea: Why not combine swamp athletics with football (or, in Americanized terms, soccer)? Swamp Soccer World Championships commenced in 1998. The event today draws a couple of thousand participants from around the world broken down into 200 teams vying for the title.
Most players find lodging at the Ukkohalla ski and sport resort, which also hosts a “Swamp Rock” event during the games. If mud isn’t your thing, booking at the Ukkohalla in the winter has its own rewards: The resort is also home to the Snow Soccer Championship.
According to en.wikipedia and stacker.com