Grandma is taking the trio for a little flight in her airplane. As they soar through the clouds, Luna finds herself curious - can you walk on the clouds? They experiment with their very own clouds made out of soap suds, but still need more answers. They decide the only thing to do is to pretend they are ducks and see for themselves if you really can walk on the clouds. Educational objective: Explore the clouds - what exactly are they and can they be walked on.