Punch Card Sale Aug 3, 2021 Kitchener Grand River Rocks turns 10 this month! WOO! 🎉 To celebrate we’re doing a 10-punch card sale! Punch cards don’t expire and are valid at BOTH GRR LOCATIONS! Have a membership at Kitchener? You can get a punch card on the side for the occasional visit to the Waterloo location! Sale ends Wednesday, Aug 11. Purchase online or in person. More birthday celebrations to be announced soon!