[Plugin: Events Manager] Can this be used for predefined multiday periods?

You can have long-spanning events too, but it remains at one location. Usually people using this for tours add another plugin or similar to show the route within the event description.

Thanks Marcus. So length is not an issue.
But what about the 3 different coaches, can we display a seperate calendar for each?

Yes, if you treated each one as a different evnet, you could do that e.g. seperating them by category or tag (or your own implementation).