There is a small soccer field with artificial turf. This is very popular with the older kids that live here.
There are multiple playgrounds with swings and play equipment.
There is a single golf green which I'm sure won't take long to master :) There is a fitness center behind the windowed walls beside the green.
There is a badminton court and some outdoor exercise equipment.
Just outside the gate, there is more random exercise equipment. We saw this in a park in Seoul as well and people appear to use it often. A lot of people here ride bicycles or walk to get where they're going. It seems that fitness is more of a lifestyle normality here than it is in the States. I have seen very few overweight Koreans since I've been here which makes America seem, in general, like a very fat country.