you beat a cave and use dive in mossdeep city thats all!
Uh what are they and what levels?
It is on Mossdeep City. There are Twin Gym leaders
there is no gym at pacifidlog
The Fortree gym.
Defeat all of the Gym leaders on Emerald. ~KKMG1
Emerald Beat the hole game Ruby beat 7 gym Saphirre beat 7 gym Diamond/Pearl pal park
there is no gym in slateport, the next gym would be in mauville with electric pokemon
In Pokemon Sapphire, Ruby and Emerald the 7th Gym that's located in Mossdeep City has Psychic type Pokemon.
fortree
at the gym
In 7th gym
Maybe depends on what you have dark types are good against the leader.