I was worried about it the other day, myself. The forest can also be reached from the Goldenrod side, too, and you wouldn't have to go through the dark caves.
The first time here, though, I went through the caves! There's a Pokécenter right outside of them, just in case.
Re: [video]
The first time here, though, I went through the caves! There's a Pokécenter right outside of them, just in case.