Bouncy castles are a classic activity at outdoor parties and events, but many people wonder whether they have to be placed on the grass. While it is certainly possible to set up a bouncy castle on concrete or pavement, grass provides a softer surface that can help to cushion any falls.nnIn addition, the grass helps to anchor the bouncy castle in place, preventing it from blowing away in strong winds. As a result, placing a bouncy castle on grass is generally preferable to put it on a more rigid surface.nnOf course, if you don't have access to a lawn or other patch of grass, concrete or pavement will work. Just be sure to keep an eye on the weather forecast and take the bouncy castle down if there is any chance of strong winds so you can have the Best bouncy castle experience.