There isn't much you can do on seven island besides training your pokemon, you can go to the north and test your pokemon's skill against the trainer tower. In the south you have to solve a mystery that allows you to capture a pokemon.
7 island. --> In Sevault canyon on 7 island.
7 island a canyon
go to 7 island
Beat the pokemon league.
you get him in 7 island and you must have a venasour
I hope this helped
in a item ball on the bottom of 7 island
You must beat the seven gym leaders, the elite four, and your rival. Then you have to capture 60 Pokemon to get your Rainbow pass the will allow you to travel to Island 7 in Pokemon FireRed.
unown appear in the ruins at bottom of 7 island
explore 7 island . GL !! ^^
you can find a marrowak in victory road, or on 7 island
A good place would be 7 island.