Good to know it's a real world they're travelling to and not a pocket kingdom in the etherium or something. I mean, first thing any travel agent should do before trying to sell you a package deal is reassure you that the destination is really real, even if the transportation mode is semi-metaphorical.
Of course that doesn't necessarily mean it isn't a real planet. Well, if you experience it then it's real enough for you, right?
I wonder if we didn't meet their travel agents before?