Walking within Terminal 2 at Paris Charles de Gaulle (CDG) is possible, but it requires an understanding of its massive, sprawling layout. Terminal 2 is divided into seven sub-terminals (2A through 2G) arranged in a long arc. You can easily walk between terminals 2A, 2B, 2C, 2D, 2E, and 2F via a series of interconnected moving walkways and pedestrian corridors. The central "Gare Aéroport Charles de Gaulle 2" train station serves as the heart of this complex, and walking from one end (2A) to the other (2F) can take upwards of 20 to 30 minutes. However, Terminal 2G is the outlier; it is a satellite building located further away and is not reachable by foot from the other sections. To get to 2G, you must take the "Navette N2" shuttle bus. While the terminal is walkable, the sheer distance can be exhausting with heavy luggage, so it is often recommended to use the free "CDGVAL" light rail for longer transfers between Terminal 1, Terminal 3, and the main Terminal 2 train station hub.