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In both Thong Sala and Haad Rin vendors sell pretty much anything you can think of, and probably some things you don't need at all. You can try to bargain, but realistically, the prices are set. You may get a deal every now and again, but it's the exception to the rule. Remember that you're in a tourist area and that prices usually are above the level of, say, Bangkok. The further you go from the ferry piers, the better your chance of haggling gets.
Main purchases you will find on Ko Pha Ngan include hammocks check out "Hammock Home Gallery" in Thong Sala as well as some of the local artist's works. Most of the clothing is of the variety that you will find in Bangkok, but generally it is a bit more expensive, as it has been imported to the island for sale.
Art Galleries are also considered to be rising business in Ko Pha Ngan. Most of the places will offer variety works and services including custom orders and art reproductions. These galleries have reputations for affordable prices and fine quality artist skills.
Tesco-Lotus is the biggest supermarket in island but not necessarily more options than in 7-11, open 10.00 - 22.00, in Thongsala. Sells cheap microwaveable dishes. The bakery makes a change from Thai food.
