The fourth route includes many different places particularly old marketplace and commercial areas. Some of the old places have been redeveloped to survive in the modern world. The route begins from the old jail, which now becomes a public park on Maha Chai road. Then walk through the park, cross Unagan and Boonsiri roads to WatSuthat, then take Tee Thong, Fueng Nakorn, Soi Phraya Sri and Asdang roads. On Asdang road, walk southward along the inner city moat until meet Pak klong Talad area. Turn left to Chakkra Phet road then take Ban Moh road, and end the route with Charoen Krung road. The total length of this route is about 3.8 kilometers and it takes about one hour to walk.