Wat Phothisomphon is just to the south of Nong Prajak Park. If coming from Day and Night, turn right, then right again at the bottom of the road, then walk past Central Plaza. You will then come to a 5 way junction, where you take the 2nd exit on to Adunyadet Road, where you will pass the Wolverine Go Go Bar. Keep going until you reach the Fountain Roundabout. At the roundabout, take the 4th exit on to the Pho Si Road. Stay on this road, and as you pass Nong Prajak Park, you will see the temple on the right.