its not supposed to be closed
If your talking about the wailmers in Lilycove city then you'll hafta go into the cave that is just north of them and defeat team Magma/Aqua. Then you might hafta fite Groudon/Kyogre. After that they shud have moved ;]
Switch their places in your party.
Yes.
You have to go north a bit into the magma cave/hide out and two guards will be blocking your way...talk to the one on the right and he will tell you were the magma leader is. You must find him, defeat him and return to the ocean without wailmers
North Cave's population is 1,943.
Yes it is.
You need to go inside a cave where you will verse team aqua or team magma (can't remember which one). When you win they will move. PS: This is my first question I have answered, tell me how I went!
North Cave railway station ended in 1959.
North Cave railway station was created in 1885.
If you mean the dark cave then there are three entrances one near blackthorn city one north from cherygrove and the other one is somewhere in between the two but i cant remember where
Shoal cave is north from mossdeep city.
From Fortree City, travel south-east and then east to Lilycove City. You will find some wailmers blocking the sea in the Eastern part at the Beach. Fly/Travel to Slateport and go to either Slateport Harbor or Stern's Shipyard to find a lot of people. Talk to the one getting filmed by a camera crew, then go back to Lilycove City and use Surf to get in the cave nearby the Wailmers.