Its in virdian city. The gym leader is Govanni, and he uses ground and fighting pokemon.
Learn how to work the Mystery Gift and go to the Machine "Wonder Spot".
you go to an island and it is there. i think it is the 8th island.
beat the 8th gym
It is your rival from Pokemon fire red and leaf green versions.
navel rock is the 8th island out from Cinnibar island. but you need the mystic ticket
Battle the 8th Pokemon gym. Mr. Seidshlag
Once you beat Blane on Cinnabar Island you should receive the seventh trainer badge. You will then travel to Viridian City and walk into the gym where the next gym leader, Giovanni, is waiting for you.
There are 9 island in totally ( Island 8 - 9 you are able to 'ctach ' Ho Ho and lugia) , Although i don't thing there is away to get onto them island without gameshark of cheats , this is because you needed a special event that Nintendo did a while ago to unlock the island - although i doubt they still have the special events for the U.K or for fire red and leaf Green
beat the 8th gym which is in the next town after the town which you live in
The 8th gym uses ground and fighting type Pokemon such as Rhyhorn and Machoke. You should train up water, grass and flying types for the gym. For grass Pokemon train them fighting the trainers between Cinnibar Island and Pallet Town. Most of the trainers there will be using water Pokemon. For water and flying Pokemon, since you will have beaten the 7th gym by now, you can train on One Island, fighting the wild fire and fighting Pokemon there and also the trainers.
After getting all the badges the 8th gym will open You beat givoanniORWalk Through Walls!!!!!!!!!!