Location the treasure koh madsum sits on a private beach in koh madsum within easy reach of nagra pearl farm and laem sor chedi other attractions in the area include thong krut and thong kut beach resort features at the treasure koh madsum pamper yourself with a treatment at the full service spa or have fun in the sun with activities like snorkeling and kayaking want a nice cool drink try the beachside bar or one of the resorts other drinking venues including a beach bar and a poolsi