The link you followed will bring you to this page:

https://calendar.google.com/calendar/u/0/selfsched?sstoken=UUltdS1zczlmU2E0fGRlZmF1bHR8YmZiODIwZTFkODI4NGRmY2U4MWE0YzVlNzA0YTYwODc