Press the switches to move around the statues and use the portals to the navigate your way to the gym leader's.
Water, dark and grass Pokemon
get a pokemon, then you train it, get it really strong, and beat th ecrap out of all the 7th leader's pokemon. Its easy.
sootopolis city, after u awake rayquaza. the gym leader is juan, changed from ruby/Sapphire Wallace
Twins Liza and Tate in Moss deep City, they use physicic Pokemon
In the mahogany gym
The seventh gym leader is Candice, the Ice Type leader. She is at Snowpoint City.
You have to surf from Lilycove to Mossdeep city so you can challenge the 7th Gym Leader, The psychic twins, Tate and Liza.
You go on to defeat the eight gym leader.
Fortree Gym leader
pryce the ice type gym leader
Go to Mawille(eletric gym town) and there will be a gym leader... there is no gym leader
In Pokemon Sapphire, Ruby and Emerald the 7th Gym that's located in Mossdeep City has Psychic type Pokemon.