Ok, almost every post in here was Spam, except for a couple. If you want to help, then actually post something about the question, and not just a link to Serebii.net as that basically does nothing.
Anyway, quoting from the site:
Secondly we'll continue with Regice. His cave is in Route 105 so go there. When you get there, read the inscription and then do a clockwise lap of the cave, staying next to the walls at all times. Once you have done a full lap, The Door Will Open and you can battle Regice at the usual Lv. 40
*Closes*