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Introducing Ko Jum & Ko Si Boya

Just north of Ko Lanta, Ko Jum and its neighbour Ko Si Boya have surprisingly little development; what’s there is tucked away in the trees, making the islands look and feel nearly deserted. Although technically one island, the locals consider only the flatter southern part of Ko Jum to be Ko Jum; the northern hilly bit is called Ko Pu.

Ko Jum was once the exclusive domain of Lanta’s chow lair people, but ethnic Chinese began arriving after Chairman Mao came to power in the 1950s. At the time there were no Thai people living here at all, but eventually the three cultures merged into one, which is best sampled in the warm early morning, amid the ramshackle poetry of Ban Ko Jum, the island’s fishing village. It has a few restaurants, an internet cafe and one dive shop, Ko Jum Divers.