You need to have flash to be able to see and then you should be fine. Perhaps you should consider buying the guide it is really helpful
You need flash,surf and rock smash to get through,or you can just make your way south from Blackthorn City
You need to surf.
i dont have soulsilver
There are no legendary in dark cave in soulsilver that i know of, but i know alot of legendaries and I could list some of them if you want.
In Dark Cave.
I don't know what cave you are talking about, but here is an example of a cave: DARK CAVE. I hope this helped!
You can get a manaphy in manaphy cave
I think its Dark Cave, I have 2 platinum games.
Dark Cave
the dark cave can be entered on route 45 or route 46
Dark cave.
just look the walkthrough on youtube
You can find Waterfall in the Dark Cave.
in the dark cave near blackthorn city
if this is the swirl islands . . <-- . . go to this one
In either the dark cave or the cave leading to azelia town, I don't remember, but you have to go deep into one of them and get the rarest water Pokemon (except for lugia) its Lapras.
In Gold and Silver Wobbuffet can be found in Dark Cave. In Crystal, in addition to Dark Cave, you can also get one at the Goldenrod Game Corner for 1500 coins.
In Pokemon
You can find it in the Dark Cave or at the Goldenrod Department Store for 2000
the dark cave is near the sairs to vilot city