Outdoor Birthday Party Ideas

With two cold weather babies, I've always envied mamas who could plan an outdoor birthday party and take advantage of their backyards and local parks. Wide open spaces and nature as a backdrop make the great outdoors ideal for water games, messy projects, and sporting events, and best of all, they can be done at a fraction of the price of indoor ones due to the lack of rental fees. We've put together 10 outdoor parties that are sure to keep tots entertained during warm weather months.