In the mountains of Northern Thailand lies a boarding school. The students come from different tribes in the area and live together with their Thai teacher, grow their own crops and cook their own meals while continuing their education. The biggest question on their mind, having spent all their lives in the mountainside, is where the rivers running down the hills end. If they pass the final exams their reward is a trip to the end of the river, to the ocean itself. The children are poor, some orphans, and most of them only speak their tribe's language, but all try their best to pass the exams to be able to take the long-awaited trip. This trip is not only a journey from the children's villages to the ocean but also a journey that symbolizes the change from childhood to adulthood.

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