Koh Phangan, like the rest of Thailand, loves its Thai Boxing; there are four stadiums in Thongsala, Three stadiums in Baan Tai and two in Haad Rin so you’ll easily be able to catch a fight during your stay. There are usually about six fights a night with local and visiting Thai fighters and a few Farang (foreigners). To find out when the next big night is, try and decipher what one of the pick-ups with really tinny speakers is saying, look out for the posters or ask around. Price on the door is usually Bt650.
If you want to learn the noble art, there are a few good schools on the island with English speaking tuition and some very good facilities. Contact Jungle Gym (see below) for more information.