Now more than ever, we try to go on family playdates outdoors as often as we can. We usually go to the nearby sports park where hubby and I can run safely while our 5-year old daughter rides her bike.
The highlight of these outdoor playdates, as far as my daughter is concerned, is the time she gets to play in the playscape. Experts say that children should have at least an hour of active play time, which is exercise in disguise. 
This early, we’re already teaching our daughter the importance of exercise and healthy eating. Hopefully, when she’s older, she wouldn’t have to look for effective abs workout dvds (which I’m always guilty of!) as she will already have a healthy and fit body.