From Pokémon.com In Pokémon Sun and Pokémon Moon, communication features such as battling and trading are all gathered together in Festival Plaza. This is a place where the festivities never stop, as Pokémon Trainers from around the world meet and mingle. As you progress through your adventure, you'll become able to use Festival Plaza, where you can welcome other people and take requests to keep things hopping. Talk to your visitors to liven things up!