in olivine city you can get strenght.....make sure that you have geodude or any pokemon that will be able to learn that HM......in the pokemon center...you can see their a house,,left on it.....go inside....it is a cofee shop of the sailors....at the last table there was a man...talk to him.....and he will give you that HM.......
use strength
Your Pokemon are supposed to learn strength and move the boulders to the wholes.
U get your sychick pokemon of crystal in cianwood.........:P
you have to get strength
The 5th Gym is in Cianwood City.
you go to olivine then battle jasmine
Outside Cianwood City Gym.
Talk to the woman outside the Cianwood City Gym.
The 5th Gym is in Cianwood City in Pokemon Silver, Gold, and Crystal.
Push the boulders through the holes by using strength, then go down a hole yourself. Now it is possible to get to the land in the middle of the ice.
You cannot as rock smash was not introduced until Gold/Silver/Crystal. You can use HM 04 Strength to move certain boulders though.
The 5th Gym is in Cianwood City in Pokemon Gold, Silver, and Crystal.