Magic Alambic Rum Distillery is an island treasure that is home to Koh Samui’s best (and only) home-grown rum. Though Thai whisky and Singha are the local tipples, tourists can head straight to Magic Alambic for cocktails and concoctions with pure island taste. As a real rum enthusiasts, you have got to visit this place. If you want to pick just a handful of souvenirs to buy in Thailand, Koh Samui rum would be well up there.