Koh Samui is located in the Gulf of Thailand (bordering the South China Sea in the Pacific Ocean). The island is a "Amphoe" or district in the Surat Thani Changwat or province.
Most beaches have white sand and are fringed with coconut palms. Many resorts and hotels are located just a couple of meters from the beach.
With direct flights from Singapore, this is a fabulous new destination to look forward to.