Share set of calendars via link

Hi there!
This might have been asked in a different manner, but i ccould not come up with the right keywords.

Is there a way of sharing a set of calendars via a single link to externals (non-users)?

The goal being ist to publish a link (read-only, write would be amazing), where non-registered users can select and deselect different calendars, just as if they were signed in and had several calendars shared with them. To do so, a single link would be necessary.

An example:
You could think of a sports club, which has different departments (volleyball, swimming, chess, etc), and on the website I would like to show all dates of all departments in different colors to interested people, so they could see which activities they can combine, without interference.

Hope this makes it somewhat clear, what I am aiming for…