You cant
Go to the sealed chamber on route 134 and be sure to have a Pokemon with dig, and have WAILORD and RELICANTH in your party
Because that's how you unlock the 'sealed chamber'.
Go in the sealed chamber on the route west of pacifidlog town to find it you need the HM Dive. Solve the braille puzzle then the rock will open.
First, you must complete the puzzle on Route 134 and the Sealed Chamber. After that, three mounds across Hoenn will open up to show a hidden cave. Registeel resides in the Ancient Tomb on Route 120. However, be warned - there is Braille there.
with a key. you can buy one at the kecleon store for 8000 poke in treasuse town.
I really don't know how you open it. I have ruby, and have all eight badges, but all I found was a description written in dots if you swim southwards.
use dig in front of the braille plaque thingy that tells u 2 use dig
complete the sealed chamber puzzle in route 134 ? (maybe) then the caves will open in the desert near lavaridge town, the island cave upper left of dewford town and the other cave between fortree city to lilycove town (near scorched slab)
In this cave we have lived. We owe all to the Pokémon. But, we sealed the Pokémon away. We feared it. Those with courage, those with hope. Open a door, an eternal Pokemon waits. First comes Relicanth. Last comes Wailord.
this means that wen u go west of pacifidlog town and in the sealed chamber, if u have a relicanth and a wailord, the three caves open which give us the three regis
in the first first gate use dig and in the second take wailord and relicanth with you.in your team put wailord first and relicanth last and press a in front of the dots placethen an Earthquake will happenthe regie locations are route 111 desert,route 120,route 104
You will see the chamber and a wall with braille on it. The braille says 'Dig Here' You will soon gain access into the first sealed chamber. The wall will open (eventually) allowing you to catch Regice.