After the release of Pokémon Omega Ruby and Alpha Sapphire, fans began speculating whether or not the game would open a Gym.
On the heels of that, Pokemon X and Y also saw players eagerly waiting for a Gym to be opened.
However, while fans were eager for Pokemon to be open to the public, it wasn’t until May that Pokemon Ultra Sun and Ultra Moon were officially announced.
According to The Hill, Pokémon Ultra Sun’s Gym will be open in April 2018.
Additionally, the Japanese version of Pokémon Ultra Moon will also be open at this time.
The Pokémon Company has yet to release official dates or a release date for the upcoming Pokémon games.