whirl islands
lugia
You can only catch lugia if you migrated it from firered or leafgreen. If you want lugia get one from heartgold or soulsilver version.
Pokemon Heartgold will have Ho-oh, which Soulsilver doesn't. On the other hand, Soulsilver has Lugia.
Which island? whirl islands? Cinnabar island? you catch lugia in whirl islands. you beat blaine in cinnabar island.
On whirl island
yes you can. but if you have Pokemon soulsilver, the first encounter will be a lugia and vice versa for ho-oh.
Yes.
Whirl Islands!
Lugia
If you mean Lugia following you, yes, it can.
Most rare Pokemon are located in scattered area such as Suicune, Riakou, and Entei, but if you are looking for Ho-oh and Lugia they are located in distinct areas pertaining to your version of the game (HeartGold and SoulSilver).
dude just go to youtube type in Pokemon soul silver how to get lugia