It is in Fuchsia City, which is West from Celedon using the Cycling Road (so you need a bike). Or you can take the bridge network South of Lavender Town. Either way, you will need a Pokeflute for Snorlax, whom you should catch because he is a beast with Rest, Sleep Talk, Return, and Hyper beam.
The 5th Gym is in Cianwood City in Pokemon Gold, Silver, and Crystal.
Driftveil City. Gym Leader Clay!
Vermilion city.
You must go to the Pokemon Gym. Beat the gym leader and he awards you with the 8th gym badge
Fantina is the 5th gym Leader in Hearthome the Ghost type gym.
The 5th Gym is in Cianwood City.
The 5th Gym is in Cianwood City.
The 5th gym is the Fuchia city gym Gym leader Koga
The 5th Gym is in Cianwood City in Pokemon Silver, Gold, and Crystal.
the 5th gym is in hearthome city
The fifth gym is in petalburg city
Cianwood city.
beat the gym
The 5th Gym is in Cianwood City in Pokemon Gold, Silver, and Crystal.
Pastoria city
Driftveil City. Gym Leader Clay!
In petalburg city.