if the boulders are what i think, you have to have strength. sorry, i haven't done it before, so I'm not sure.:|
Use Strength. It can be obtained at Olivine City in a building next to the Pokemon Center where there is a sailor inside. Teach your Pokemon Strength so that you can push aside big boulders.
use strength
You get it from a lady in vendanturf town, and use it in front of big boulders. you need the heat badge to use it out of battle.
Strength.
With the HM move strength.
Use Strength. It can be obtained at Olivine City in a building next to the Pokemon Center where there is a sailor inside. Teach your Pokemon Strength so that you can push aside big boulders.
use strength
You teach a Pokemon strength.
You get it from a lady in vendanturf town, and use it in front of big boulders. you need the heat badge to use it out of battle.
Strength.
With the HM move strength.
steal other players flags, when you get enough you can remove boulders
you need strength (HM4). i cant remmbr wer 2 get it from though. sorry.
any pokemon that can learn strength can push aside a big boulder
sky pillar for claydol
strength
You just need one of the Pokemon in your party to know the move Strength.