that is an underground path that takes you to the guardian meadow...
follow the linear path to latias... if you catch latias, as you leave latios will fly in and try to beat you... you MUST CATCH latias or latios wont bother attacking you (he will be off helping his sister recover)
"Sister" ohhhhh, I finally get it:p that is why they can't breed. Damn, why didn't I think of that earlier. I spent soooo long in my childhood trying to breed a baby [email protected]
Anyways, it is looking sharp. I played through some more, and it definitely looks pretty cool!