I never noticed that the main 3 courses are not selectable in each day and they are fixed based on calendar before I ride 3 month or so.
Mostly because the UI shows the calendar in lower right position where the user does not take much attention. User mainly focus on the course selection dialog and its dropdown menu and think this way: “Where can I choose the course like Watopia or London?”
I would like to propose my idea to solve this. Why don’t you place the course title right above the course option menu?
I saw many newbies asking the same question that I did.
Probably there is some technical difficulty to implement this, but I hope this will solve the problem. (I am a User Interface Designer)