Instead of water balloons make sponge bombs! This is a great way to beat the heat without using up a lot of water, and sponge bombs can be used and re-used all Summer long. (And don't have all those balloon pieces everywhere!
Here’s a simple open-ended building activity for kids of all ages – Colored craft sticks, wooden cubes, and small plastic cups! Simple materials, and yet we have been having a blast building all kinds of amazing structures with them.