The sun may be very strong throughout the nation, so good solar cream, a hat and sunglasses are vital.
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Straddling the border between Bolivia and Peru, Lake Titicaca is steeped in myths and legends - but one strong fact is that it is the world's highest lake.
Once often identified as the island of Titicaca, it was the epitome of the entire Titicaca Lake.
More artifacts of the Inca civilization have been revealed in 2000, with the discovery of temple remains far down in the Lake Titicaca depth.