it will appear in the grass. randomly. i suggest flying around randomly and walking around in the grass.
i might as well give it a try, i figured since it was random i was switching of between the largest grass areas i could find.....
EHH yea thats how you get latios/latias in the water....Tho i think this topic shouldnt be here. It has to be in the emerald section.
my bad, didnt really think that it would have been that big of a deal.....