Instructions
Click once on the boat you want to empty. A command menu will appear.
Click once on an empty patch of shore. Dots with an "X" will become visible, signifying the path the boat will take to get to its destination. Green dots with an "X" represent how far you can move the boat in a single turn.
Click the green "X" at the end of the dots to send your boat along that path. When the boat reaches the shore, the troops will automatically disembark.