Well first if you have gotten into the first chamber it is easy all you have to do is have a Pokemon thet knows dig and use it in the middle of the dots and if you have relicanth and wailord put relicanth in first and wailord in last and press a on the last dots you will open the door to the regis.
by Dean Jones
read sign, wait two minutes the door will open
go to the dotted hole use cut open the door and inside u can find the Sapphire but the scientist steals it and he goes to the rocket wearhouse on island five and you get the second password from him the first is on mt.ember
its a building on sixth island that contains the sapphire. to get in it, use the HM cut on the door to slice the it open. then fall down the hole u see wen u enter then go... up, left, right, and down. and there is the sapphire. hoped this helped!!! bye:)
If you mean the Wifi Plaza, then it opens after you get your first or second badge I think.
sorry but you can't find it in Pokemon diamond/pearl without migrating regirock from Pokemon ruby, sapphire, or emerald. But I think there is a cheat on the action replay for it, but I don't know the cheat.
U need a wailord and renculs
beat the second gym leader. hope this helped! : )
you open them by teaching a pokemon secret power and then tap A next to the indent.
Forever
well they are secret bases but you need to teach one of ur Pokemon secret power(tm43), and u can get it in slateport city at the open market!(In Pokemon Sapphire).
Pal Park (open after you beat the main game)
The elite four will open and they will be stronger and you can now trade with ruby, sapphire and emerald.
read sign, wait two minutes the door will open
You need to know the move dive and get something from underwater
u have to get the pannels done then u go 2 the archeoligeats house and he will open them
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.
It is on 6 island u use cut to open it inside is a sapphire.