Critical Mass On The Water is a unique artistic event on the Vistula river. This is the tenth time when joyful, liberated art will float on the river. This is the day when it becomes a colorful area of performance and fun. The event is fully participatory – its created by professional and amateur artists with the citizens of Cracow. The main part of preparations to the final flow are workshops for the citizens in the Open Shipyard, lead by artists and constructors, during which the floating works of art are created.