Do the following: Go to four island and find icefall cave go inside and find HM7 which is waterfall now teach it to a Pokemon then use it to go up the waterfall inside the cave now go to the ladder and now your faced with beating a rocket. After beating him go to six island and go to dotted hole the guy should be gone now use Cut on the door to open and now your inside.
Go see Lorelei in Icefall Cave you can get to her if you find the HM Waterfall which is also in that cave.
Answer:Have a Pokemon use the HM move Cut on the door.
take a Pokemon that knows the move cut and then go through the menu and select it
When you see the strange entrance, use cut to open it. You MUST fall through the holes in this way: North hole. West hole. East hole. South hole.
You go to icefall cave and defeat team rocket there.
Answer:Have a Pokemon that knows "cut" use the move from the menu while standing in front of the door.
to get him to move you have to beat Team Rocket inside the cave on four isand first
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!
Use the move Cut.
There is only one dotted hole and it is on ISLAND SIX of the Sevii Islands. If you move down south you will eventually reach the dotted hole, at which point a door with strange readings is apparent. To enter, you must use the HM move CUT. This will open the door and enable you to get inside. When you are inside, you need to go in a certain way (up, left, right, down) to reach the room where the sapphire is in.
Use the move Cut on the door.
Use the move Cut on the door to open it.