In the meantime, I have spent hours trying to get my 5/6 week old Runner Ducks to go to the lake for playtime! It takes me forever to corral them, then walk to the lake with them and them drop them into the lake and then guard the shore so they don't immediately run out and home! They actually spent about 10 minutes playing this time! My older ducks go every day and love it. It will take a few more trips down there until they get the hang of it. I am hoping that the younger ducks will eventually hang out with the older ones, but they are like chickens in that respect and it will take a while for that, too!