Its inside a pokeball inside the Pokemon mansion on Cinnabar Island
there is a key in the Pokemon mansion... you need it to get into the gym... search the Pokemon mansion thoroughly
They're on the FIFTH island.
The key is hidden in the basement of Pokemon Mansion which is located on Cinnibar Island.
You can battle the trainers near seafoam islands if you don't want to why not try training on routes 24 and 25.
He is on the 7th floor, (right before the 11th floor with the man that gives you a masterball).
The 7th gymbadge is in Cinnabar Island
Arcanine at level 48.
7th floor.
there is a key in the Pokemon mansion... you need it to get into the gym... search the Pokemon mansion thoroughly
to open the door of the 7th gym!
Get the 7th or 8th gym badge, and its in the Power Plant.
He will appear after you beat the 7th gym leader.
where artacuno is in leafgreen up the ladder.
As soon as you get the 7th badge and the HM rock smash.
well first after you beat the 7th gym leader bill takes you there to the islands
first u need to have surf. take the ferry to the 7th island
read the question, "where is the 7th gym leader?" everything you need to know will be in there