Wodny szlak brings you back to the times when the easiest way to move timber and grain was to float it down rivers' current.
Each turn every player will draw one tile from the three available and place it next to one of their tiles. Each game takes 13 rounds, and at the end of the game every player scores for their board. Player with the most points is the winner.
Every tile will bring you some points, as you score for every watermill/sawmill that has grain/timber delivered, for the longest undisturbed connection between any two wharfs and for all meadows that are made of three or four tiles.
Your biggest challenge is to keep track of the current, as you can float your cargo only down the river and every watermill/sawmill will block further advancement.