I have a pretty decent backyard. A good sized grassed area and then a concrete area (great for bike riding and chalk). Also a veggie patch and fruit trees which is good with the kids as we can go and water the plants, watch the vegetables/fruit grow and then pick them and eat them
I love having a backyard and it was one thing that really important to me when buying a house. I don't want to have go to the park everyday but my kids love being outside so it's very useful having a decent backyard to play in.