In Fortree City.
The fifth gym is in petalburg city
The gym in Petalburg.
In the lavaridge town gym.
you cant
in lavarage town
fortree city
it is a dragon type Pokemon gym
The third gym leader in Pokemon Sapphire is Wattson and he is located in Mauville City.
fire gym in lavaridge
the seventh gym in pokemon sapphire is in mossdeep city.
In sapphire, the 5th gym leader is your dad, in that city after Oakdale.
it is in petalburg near the Pokemon gym
In the gym.
You can with AR.
petalburg
In the lavaridge town gym.
the grass type gym