Running, Walking, Jogging, Brooklyn
And... yes, the Prospect Park again. This place has a lot to offer and I keep giving you some tips about it. Since my house was located just 5 minutes walk from there I used to rollerblade there, my friends were biking or running, other people enjoyed fishing, horseback riding, and even playing football, tennis, or volleyball. On winters ice skating is available.
Equipment: Every one can find a sport activity for him/herself there. You have to remember one thing: children under the age of 14 must ware helmets. And a little suggestion from me, if you rollerblade wear elbow and knee guards, going down the hill can be very rough and sometimes hurt!!!!