To discover the flavours of Koh Samui, head on a street food tour. It is the best way to sample a range of delicious Thai cuisine. If you don't want a guided tour, you can do this yourself. Make sure to sample some of the best dishes, such as papaya salad (Tom Sam), Pad Thai, Yellow chicken rice (Khao Mok Kai), satay, noodle soup (Gwoy Tiao) and rice or noodles with green/red /yellow curry. As for dessert, sample the famous mango sticky rice!