Lost Hotel (Route 15). It's past The Boss, behind a rock wall that needs to be broken with Rock Smash.
how do I get to see the Boss? I keep getting told im not stylish enough
Skaters gonna skate: I think you need to learn all the tricks for roller skating in Lumiose City to get in. I don't recall myself since I didn't have any problems getting in, but I found this list in the Rotom thread:
Find 4 skaters in Luminose city. 1 is at a Cafe 1 is at either the north or the south part of the city (The large roads) 1 is in a building with an elevator 1 is at one of the plazas After you've done that, you'll be coooool
--- All above is completely true and accurate, unless it isn't.