You have to go and find the key in the Manson next door (this is for the game Pokemon gold for gbc) go to the lake of rage beat the red gyradose talk to lance help him do the team rocket base in the freaky gift shop and then you can do the ice gym or if you mean kanto blaine's gym was destroyed so go to cinebar islands and surf left to the second entrance to the seaform islands go up the ladders and that's his new gym
first get a ice type Pokemon then go threw the whole gym face gym leader and get the badge
to battle Blue in Pokemon Heartgold you must defeat the 7th gym leader, then find him on cinnabar island. Talk to him, then he will go back to his gym for you to fight
He is the Gym leader in viridian city
You have to have defeated Team Rocket in order to battle Claire.
Go east of Cinnabar Island to the Seafoam Islands, the gym leader is there using a cave for his gym.
The six gym leader location in Pokemon Heart Gold is Olivine City, but you battle the one in Cinnabar first.
You CAN NOT become a Gym Leader in Pokemon HeartGold and SoulSilver or ANY MAIN SERIES POKEMON GAME.
To battle Gym Leader Jasmine of the Olivine City Gym, you must have gotten the SecretPotion and healed the Ampharos.
The third Gym Leader in Pokémon HeartGold who is Whitney the Goldenrod City Gym Leader, she'll be in the Radio Tower when you arrive in the city. You have to get the Radio Card for the PokéGear before you can battle her.
In Pokémon HeartGold, you can find the 3rd Gym Leader in Goldenrod City.
Obtain it from a gym leader.
The gym is in Blackthorn City.The gym leader is Clair.