There is no jirachi's cave.
This is because you have to go in the cave at the top of the town then the gym will open.
I don't think you can, in emerald you need the nationaldex and POW! it's open but in ruby and sapphire you can't.
You read the middle braille, head for the middle of the room, and use fly. the door should open, and you'll be able to fight a level 40 Registeel.
you need azelf,uxie,mesprit to open the cave after beating the Pokemon league
There is no jirachi's cave.
Beat the elite four the cave should open.
that cave will open after beating the elite four near route 111
In order to open the Regis caves in Pokemon Emerald you first have to go to route 134 and dive into the cave. When you are in there use dig. The first Regi cave is located in the desert.
This is because you have to go in the cave at the top of the town then the gym will open.
I don't think you can, in emerald you need the nationaldex and POW! it's open but in ruby and sapphire you can't.
if you played out the Pokemon league, its closed and you cant open it again unless you start a new game
Read the inscription and then go to the middle of the room and use Flash. The door will open and you can battle Registeel at the usual Lv. 40
well what you have to do is go inside the cave in sootopolis city and battle your special pokemon its either Groudon or the other two pokemon (which i dont know the name of and then the gym will be open...
If you mean the dark sunglasses, then in Rustboro the cave has an open space with a guy. If you use the item finder you'll find the glasses
You read the middle braille, head for the middle of the room, and use fly. the door should open, and you'll be able to fight a level 40 Registeel.
You have to uncover the Submarine in Secret Cave in either route 224, 124, or 225. I haven't played Emerald in God knows how long.