That link is s0o0o0o0o0o0o helpful </sarcasm>
Anyway, the REAL location of where the Sun stone is hidden is on Six Island. Near the hole where you have to use cut to open one of the doors. Well, there are some boulders and rocks you have to smash to get to it, but I'm pretty sure it's around there somewhere.
Hoped I helped a little more than the guy above
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