The 600 years anniversary of Grunwald battle between Polish army and Teutonic knights. It is a very popular event among turists which visit this  place with amount of tens of thousands. All participants live in a closed (for turists) camps and follow the 15th century rules- special clothes, tents, equipment. They also produce their own armors.

Fights, called bohurts, which takes place during the second last day, gather hundreds of fans. Rules are clear- no stubbing, no attacking knight laying on the ground are allowed. The rest is for real, wounds, injuries. Only the swords and axes are blunted.

On the very last evening every group prepares a feast with tens of liters of mead, meat and 15th century songs.