Make a simple little boat with a leaf sail. Take a trip to your playground and collect lots of leaves, twigs and pieces of bark.
With a drill, knitting needle or other sharp object, bore a hole in the centre of a piece of bark to hold the mast for the sail. Now push a twig into the hole making sure it fits tightly so each child can “thread” on a leaf by poking the twig through it twice to hold it firmly.
Sail the boats in a big tub or sand and water tray. Better yet, take the children to a stream and really let them sail.