Must-Have Picnic Games and Activities for Outdoor Events July 16, No picnic or outdoor event would be complete without a series of fun, entertaining picnic games and activities to keep partygoers enjoying their fun in the sun. The picnic games listed below are our crowd-pleasing favorites for picnickers of all ages, and we know that you. So, the next time you are planning a picnic with the adult crowd have fun and entertain the crowd with one or more of these great games for adults! Your fun time with grown up friends should certainly be an inspired and positive one! And, for the. A roundup of the BEST do-it-yourself backyard games and activities to play with lots of pictures and resources! These DIY lawn games are fun and easy to play with the kids (or just adults) for spring, summer, fall, or anytime the weather permits backyard activities. Perfect for a party!