Just have one of your Pokemon use cut on the door.
First you have to fly to seven island. Then after you get there, you have to have a Pokemon with the move cut. Then go to the dotted hole and use cut on the door. when you get in, there are four holes, go to the north hole first, then the east hole, then the west whole, then the south hole. if that doesnt work try north, west, east south. I'm pretty sure that's how to do it!
sapphire in dotted hole. ruby in mt. ember.
you get the Sapphire in dotted hole (you use cut to get into dotted hole)
Dotted hole on six island.
The Dotted Hole is an area exclusive to Pokemon FireRed and LeafGreen. It can be found in Ruin Valley on Fortune Island in the Sevii Islands.
in the dotted hole on island 6
use cut
In dotted hole on six island.
you've got to use cut.
South on six island.
dotted hole is on the south side of six island. (the sapphire is in there) a little extra info: dotted hole does have braille in it.
To open the dotted hole, use Cut at the entrance and the door should open. he is so right it does open
Answer:Have a Pokemon use the HM move Cut on the door.