Popsugar Parenting Preschooler Activities Outdoor Activities For Preschoolers 25 Cheap Outdoor Activities to Keep Kids Busy ALL Summer 8 June 2018 by Murphy Moroney View On One Page Photo 15 of 24 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 15 Stage a water balloon fight. Go into attack mode and invite a few kids over for a full-blown water balloon fight. They'll love watching them pop! Previous Next Start Slideshow Preschooler ActivitiesKid ActivitiesPreschoolerLittle KidsParentingSummer