This is also known as Tang Kuan Hill as the word Khao means 'hill' in Thai language. It is also popularly known as 'Monkey Mountain'. The temple is quite small and can be seen in a few minutes, but the view is spectacular from the hilltop which can be reached by the funicular railway (cost 30 baht return) or you can walk up some steps on the opposite side of the hill for free. These steps go through some jungle and some there are some ruins of other temples on the way up. It will take at least half an hour walking each way if you choose this option and can be very hot. Make sure you take water with you. From the top you can take nice photos of Songkhla and the surrounding countryside including the range of hills on the way to Hatyai. If you want some more gentle exercise you could take the railway up and come down by the steps. However make sure you have a map of Songkhla so you know where you are when you come down because you will be on the opposite side of the hill.