Another relatively short but enjoyable path close to the center of Oaxaca is this stretch along the Rio Atoyac just west of downtown. There is a roughly 2 km dirt track on either side of the river. On the north end, the path starts under the Monte Alban Bridge. In the south, it runs just past the Calle Emiliano Zapata bridge. It is possible to form a 4 km loop with the bridges, although the surrounding traffic can be a bit stifling. The nicest section of the path is along the west bank between the two bridges. The river is prone to flooding and the trafficky roads are in rough condition, but there are plans in order to further develop the banks,  which will include extending the paths. Note: exposed, be aware on hot days! The river can also get a little stinky in the heat.