Sam Pan Bok is group rocks under the Mekong River, In the rain, they will be under the water. They are eroded by the current and become over 3000 of small and large reservoirs. In the drought, all of them will be over the current, revealing the beauty of eroded rocks. Visitors can swim in some big ones and there are variety of small reservors with different forms such as stars, circles, or dog's head. It is regarded as Thailand's Grand Canyon.
Location : Ubon Ratchathani
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