GCA Fall 2019 Online Registration Indoor Program Registration Closes Sept. 22 @ 11:59 p.m. Basketball Registration is closed - contact us directly to register @ firstname.lastname@example.org Sorry, the page you are looking for is not available. We're sorry, but the page you are trying to find is not available. Go back to the Home Page Become a GCA Member Today! Your membership supports the Greystone Community Association. Membership helps support our rink, community events, and programs.