For the lazy breeders among us who were happy with the infinite loop around the Lumiose Tower, there's an infinite loop on the Battle Resort.
You go to this spot after picking up your eggs and just hold up. It takes you around the entire island and nothing will walk into your way. It's not as smooth as it was in X/Y, but at least you don't have to constantly be changing directions yourself.
I'm not sure if people have found this already, but I felt I might as well mention it.
On a completely unrelated note, I really love all the effects Pokemon get in the Contest Spectaculars.