Silly me. I hovered on it and a sub-menu came up and I clicked on that and I got the calendar.
I think links should be links and sub-menus should be sub-menus. The two should not be mixed. I always find that confusing. Websites should be simple.
Sorry, I know you probably can't change it, but I think in this case the link is obscure and that's kinda bad. Maybe there should be a prominent link on our pre-homepage homepage?