In the month of August, Park Avenue and Lafayette Street are shut down on three consecutive Saturdays from the hours of 7 am to 1 pm in order to give NYC residents the opportunity to walk, run, dance, and more down a perfectly car less avenue and street.
The purpose of this is to encourage more sustainable forms of transportation.
Along side the closed Ave are other free and fun activities to engage in which make for an even more delightful Saturday. 
My friend and I took advantage of this yearly event and owned Park Ave on my skateboard and her roller blades.
POSTCARDS & PUMPS 