No! This is a totally free event. Food Trucks will be on-site if you want to purchase food.
Best option is to take the C-Train. The Kerby Centre Platform is just steps away on the west end of the 7th Ave free fare zone. Other nearby C-Train stops include 8th Street SW, Sunalta and Sunnyside.
A 78 Stall ParkPlus Lot is located along 6th Avenue / Bow Trail on the North side of the old Science centre. This is LOT 64 Millennium Park South. There are 2 accessible stalls, access via 11th Street SW between Armory and Old Science Centre.
(click for map)
There is also Park Plus Street Parking in the beltline and surrounding area.