After resting up at the pokemon centre for a while, I decided to train a bit before moving on To the next city. As I went past the a building on route 7, a man came up to me. He told me that the building was a daycare center, and that I could leave my pokemon there for them to be looked after and trained. I decided I would try that out later.
I also passed the battle chateau, but decided not to go in, as I decided I probably wasn't strong enough to take on the trainers there.