you have to have the rainbow pass. you take the ferry
In Sevault Canyon on Seven Island.
You cannot get to Fire Island on Pokemon LeafGreen. Fire Island is a setting exclusive to the second Pokemon movie, Pokemon the Movie 2000.
On seven island near tanoby chambers.
You need to Get a mystery gift
You don't. It only goes up to seven, I think.
Seven island.
After you defeat the Elite Four.
Beat the Elite Four, Get Rainbowpass from cello,and tada! You are at seven island
The gem is on six island not seven island and its inside a cave called dotted hole.
In Sevault Canyon on Seven Island.
you have to beat the trainers and the time in that place on seven island
technically there is one it is unown it looks like the alphabet.
On cinnabar island but you need to get the secret key in Pokemon mansion first.
You have to catch a larvitar at Sevault Canyon on Island Seven and evolve it.
Larvitar can be found on Seven Island at Sevault Canyon (southern part of the island).
You have to fight the Pokemon league to unlock island four, five, six, and seven.
After getting the national dex you can find national Pokemon around one island, two island, three island, four island, five island, six island and seven island.