You can also challenge the gym leaders with your team.

[He'd had similar thoughts though, that there had to be some other goal for them to reach outside of the ones handed to them: traveling, winning badges, expanding their Pokemon teams. It was all a little too good to be true in a sense, taken from home to leisurely explore without much of a threat to be found.

What was the point in bringing them to a world solely to relax?]

If there is a higher goal or purpose, I'm afraid any knowledge of it isn't public. We're not in immediate danger at least- there's time and quiet to inquire and research as we'd like.