Songo is a purpose-built Mozambican town constructed specifically for dam builders in the late 1960s. The builders in question were responsible for raising the massive Cahora Bassa, the fifth-largest dam in the world. It was completed in 1974, and is set at the head of a magnificent gorge in the mountains. The dam makes a good day or overnight trip from Tete. It’s also a wonderful destination for anglers, and is renowned for its tiger fish.