meet him an island near pallet town
you go back to olivine
If HM8 is Rock climb, You have to beat blue (gary Oak) then talk to Prof oak and he give you it. Blue is the 16th Gym leader
go to the next gym leader.
Go to the forth gym!
the eighth gym is in virdian city, talk to blue on cinnibar island and he will go back to his gym.
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
every single one except his
You fid him back in his gym in veridian city. The place where Giovanni use to be
Talk to Blue on Cinnabar Island.
He is the Gym leader in viridian city
His name is Blue Posted By Tom587
After beating blue, the 16th gym leader
Machamp, Arcanine, Exeggutor, Rhyperior, Tyranintar, Pidgeot. I made a link of all gym leaders, blue the gym leader is at the bottom.
Red is at the top of Mt. Silver. Blue is the Viridian City Gym Leader.
Red is in mt.silver and blue is the eight kanto gym leader
there is no 9th gym
He is found on Cinabar Island, when you get all 15 gym badges then he will go back to his gym.He is on cinnabar island. By a rock climb.