Ok I'm at regice's cave and I don't know how to unlock the chamber! I have..

For Regice, walk up to the top of the room and press A. After that don't move, leave it there until the door opens it will take about 5 minutes.
For Registeel, walk to the center of the room then use fly and the door will open.

Read the inscription, close the window with the inscription, and just sit there for two minutes.

Once you have read the brail, press "A." Then, don't move! Don't move or click any buttons. Wait a few moments and the passage to Regice will open up for you.

Go to the writing and keep waiting. Don't get rid of the writing. Just wait.

For regice just read the braille and then don't do anything, afetr a minute or so the door will open.

For registeel, go to the centre and fly.

For registeel go to the centre f the room and use fly .
For regirock go talk to the thing in brail then go 2 steps right and 2 steps doen and use strength.
For regice talk to the thing in brail and wait for 2 minutes.

I HAVE ALL 3 SO TRUST ME.

For regi steel just go to middle and fly.
For regi rock go click the brail then click out of the brail, then take 2 steps right, 2 steps down then use strength.
For regi ice do what every1 said... And just click the brail (LEAVE IT OPEN) wait a few minuets and it will open.. It works..

Thanks guys for the regice help

For registeel go to the pacificlog and find a place where there is a circle of big rocks around a small spot where you dive and dive there. Then there is dots that I don't have a clue what it says but you must dive up there(dive up in front of the dots.Go to the top middle and use dig, but beore you cotinue you must have relicanth last in you party of Pokemon and waillord first in your party of Pokemon and I don't have a clue what you have to do next (I'm stuck there and I need help so someone please help me)

I need to know how to get INTO the dang cave in the first place. You know, When I'm on the beach OUTSIDE the cave.