GCA Fall 2019 Online Registration Indoor Program Registration Closes Sept. 22 @ 11:59 p.m. Basketball Registration is closed - contact us directly to register @ email@example.com Support the GCA PURCHASE GCA MEMBERSHIP VOLUNTEER REGISTER NOW *Visa or Mastercard accepted. Register for one of our Indoor Programs today! Karate l Youth Art Class l Yoga l Hip Hop l Pickleball Become a GCA Member Today! Your membership supports the Greystone Community Association. Membership helps support our rink, community events, and programs.