The link you followed will bring you to this page:

https://calendar.google.com/calendar/u/0/selfsched?sstoken=UUlBUk1PNHNKWDdzfGRlZmF1bHR8ODRmOGVlNGRiMDZkMDk3ZWQ0NWRlYjk4Mzc4YzQzYWE