In Ducks in Tow, you are walking around the park feeding the ducks their favorite food. When you feed them, they start following you and you must lead them to their favorite location in the park.
When you successfully lead them to their favorite location, you take a photo with them and they waddle off to find their friends. Maybe you'll see them again later as you continue your walk around the park.
You will be completing Location Cards that will gain you points at the end of the game. Once you have completed a few Location Cards, you might be able to claim a Formation Card, which will give you additional points at the end of the game.