Sand is murder for ballbearings; not the big gritty stuff that you can see, but the fine powder sand that gets in everywhere.
Last time we went to a beach, we preferred to reinstall bushings where they were exposed. (Rubber-sealed bearings kept out most of the dirt, but still some fine powder got thru.)
Aircompressor is very handy for cleaning the car afterwards… wish I had one! 🙂
