Hoenn's Pokémon League is located north of Ever Grande City. This is the ultimate test for trainers, with the Elite Four and the Champion renowned as the greatest trainers in the region. Only those who posess the eight Hoenn Gym Badges may pass through its doors. It is a large yellow building with big doors.
There's a Pokémon Center and a Poké Mart inside the building so you can rest your Pokémon and stock up on essential items before taking on the challenge.