I want an outdoor area for my son's fifth birthday. Any suggestion mummies?

My kids are soccer crazy so I do mine at The Cage at kallang. You can book the soccer pitch (which is caged), on a per-hour basis. You can set up food that you bring from home/cater. So it's a fuss-free option for us. The boys love it! And you're in, play a game, have some food, cut the cake, and you're out!