Route 4 (Japanese: ４番道路Route 4) is a route in central Kalos, connecting Santalune City and Lumiose City. The route is also known as Parterre Way (Japanese: パルテール街道Parterre Highway).
The route is decorated with patches of different-colored flowers, hedge mazes, and a big fountain known as Perle Fountain standing in the center square, dedicated to acceptance and harmony. A group of Gardeners is in charge of taking care of the hedge mazes. At the north end of the route lies a gate leading to Lumiose City. This is where the player will, for the first time, meet Sina and Dexio, two assistants of Professor Sycamore, who will tell them about Flabébé and the Fairy type before leading them to Lumiose City.
Route 4 appeared in What Does Charmander Do When It Dozes?, where X, Y, and their friends traveled through the route on their way from Santalune City to Lumiose City to meet up with Professor Sycamore. On their way, they found a Charmander, which eventually turned out to belong to Professor Sycamore, having escaped from his laboratory a few days earlier.