There are Diffrent Entries to Mt Coronet,one leading from Oreburgh City,and one from Celestic City and Entrna City.
After getting HM Rock Climb, go climb Mt. Coronet. After you either beat or catch Dialga, the man on the path to Sunyshore city will be gone, so now you can go there.
Walk through mount coronet
on your way to snowpoint city and mt coronet
To the right of Mt. coronet
Trough eterna city
You need to calm Dialga on Mt. Coronet.
go to top of mt. coronet capture dialga go to sunyshore city and you can get in
you have to climb to the top of mt. coronet, then you will end up in a snowy place. follow that route to find snowpoint city.
first you must go to mt. coronet on the side of orbourg city and defeat Cyrus and afterwards you should be able to get pass.
You must go to hearthrome city and then to route 208 at the end of the route you will see a cave in and then you should go up and right.......also you must have rock climb......
First, you will need Surf, Rock Smash, and Rock Climb (and Waterfall if you want to climb the waterfall). Enter Mt. Coronet from the Hearthome City or Oreburgh City side. Make your way northward through the cave. You will have to go outside in the snow at one point. Keep rock climbing till you find a cave that leads back into the mountain, and the next room should have the waterfall.
there are 2 in total one is located east of the survival area and the other one is found by going to mt. coronet in the Oreburgh city entrance and going up then use surf and then rock climb