Ko Si Chang is the place to go if you want to squeeze in a day of local Thai vibes and SCUBA diving before you leave Thailand. Visit coral reefs in the making supported by the DMCR (Department of Marine and Coastal Resources), enjoy the anemone gardens and search for nudibranch at Hin Sampayu.

diveoclock.com/destinations/Asia/Thailand/Ko_Si_Chang_Scuba_Diving/