Tham Khamin (in Thai : ถ้ำขมิ้น) or Tham Men (in Thai : ถ้ำเหม็น) – Exotic stalagmites and stalactites can be admired in this cave. It is limestone cave with medium size of hall with high ceiling. It located near Tat Fa Waterfall, situated in Moo 7 Tambon Lampoom, Ban Na San District, Surat Thani Province. Significant characteristic is that plenty of bees nested inside the cave. The walkway is well-lit and fit with stairs when needed, to ensure maximum safety. Contact the official stationed in front of the cave prior to entering the cave.