Whyteleafe has an amazing green space at it's northern edge: the 'Rec'. Not only is there exercise kit, football goals, tennis courts and a lovely playground, there's also a lovely little cafe that does a mean almond cake and a lovely panini. It's a great place to wander to for brunch or an afternoon snack, and is very dog and family friendly too.
Getting there: it's right here in whyteleafe. Head up Hillbury or Maple road for access.