Need help on Shadow of The Colosous

I'm up to the very last guy. I can get to his right hand. But where do I go from there? I'd really like the help.

OK, on the last colossus, after you stab his unprotected back and get all the way to his right hand (it took me forever to figure this out) you

Dont highlight the strategy unless you want the fun of discovering it yourself gone......

Spoiler (Highlight to read):

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Take out your Bow and shoot an arrow into his left shoulder. He will bring his hand over the wound where you have access to his head

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