Pacifidlog Town is a town located in the Hoenn region. It is the only town that is floating on the top of the sea. It is said to be floating on a colony of Corsola. By using Surf, to the left of the city you reach Route 132, in which very fast ocean currents are located. This Route connects Pacifidlog Town to Route 109, which in turn, connects to Slateport City. The two lesser known legendaries (Latios and Latias) are first mentioned here.
In one of the houses there will be an old man looking out the window. If you talk to him he will tell you if Mirage Island has appeared or not.
Pacifidlog Town is currently the only town in any Pokemon game where it is completely possible to run.