Memorizing the poem makes it more fun. After your child does the activity, reverse roles. Child walks over adult. Child lies on floor, adult walks over child. Adult balances on hands and feet facing floor.
Child crawls under the bridge made by adult's body.
This is an interesting challenge for the adults. Child crawls through legs. Adult sits on floor with legs apart and straight. Adult holds rod or wooden dowel at a low height. Child jumps or hops over the rod.