When I made the plans I'd pictured it going through the woods that surround the routes, so, its own grounds...but if an agreement to use parts of existing routes is better, I don't mind going with that instead; I do know that the layout construction was part of what contributed to timing of the challenges (and was why Emporio could just fly there and wait), and I'd envisioned construction being helped along with 'Secret Power'...

...well, in any case, it's meant to be very maze-like, rather than something too expansive. As it stands, which ever call for the location of the course/grounds is more appropriate here, I'll follow.