Approximately three kilometers to the south of the famous Hat Samila is Kao Seng fishing village, which has one of the most beautiful beaches in Songkhla. Along the coastline are several pieces of rocks, one of which stands out above the cliff. The local residents refer to that rock as “Hua Nai Raeng”. Kao Seng is a corruption of the name derived from the Thai word “Kao Saen”, referring to the nine hundred thousand bahts treasure that is buried under Hua Nai Raeng. Kao Seng can be reached via the road to the National Coastal Aquaculture Institute.