How do I get to Blackthorn city?

Question

I've been at the ice path and the boulders are in the way what should I do?

Comments

There are many boulders blocking way so tell us more

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I said push them! have you gotten the HM strength?

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I'm going to ice cave right now

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I'm there. Try to avoid the pokemon they will just slow you down. Slide on the first ice and then go to the next ice lane

Answer 1

You can use HM Strength to move the boulders.

Answer 2

You go through ice path by sliding on the ice and pushing boulders.