The Most DANGEROUS River Source On Earth | Amazon Mystery

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Deep in South America's deadliest jungle, an elite team pushes toward one of Earth's last unmapped mysteries - the hidden source of the mighty Essequibo River. As they battle through the savage Acarai Mountains, nature unleashes its fury. Faced with raging fever, impenetrable jungle, and the mountain's deadly surprises, the team's dream of discovery hangs by a thread. Will they unlock one of exploration's final secrets, or will the Amazon claim another expedition? Their quest to map the unknown becomes a fight for survival in one of the world's last blank spots.