What’s not to love about some water fun??? Set up the sprinklers, a slip-n-slide, or anything else you want. Add in some water guns and have fun. You can make a large slip-n-slide using a roof tarp and some dish soap. You can bring out some buckets and sponges and throw them at each other and try not to get hit with one. Go with whatever ideas you come up with or do a little internet research and find some water games to play.