Carcassonne: The Ferries

From BoardGameGeek:

Carcassonne: The Ferries, a small expansion for Carcassonne, includes eight new land tiles that show three or four road segments leading to a lake in the center of the tile; these tiles are mixed with the other tiles in the game. Whenever a player draws one of these tiles, she or he places it following the normal rules, decides whether to place a follower (and if on a road as a robber, on which segment), then places a ferry on the tile to connect two of the road segments. Any segments not connected by a ferry end in the lake. Whenever a player extends a road that contains one or more ferries – whether by placing a Ferries tile or a regular road tile – she or he may move the first ferry closest to that tile in each direction of the road to connect different road segments. If this movement leads to a road being closed at both ends, that road now scores. Part of the Carcassonne series.