In the heart of Isalo National Park in central-southern Madagascar, at least 200km from the sea in any direction, is a remote valley with a mysterious past. This place, Teniky, can only be reached on foot, by hiking through a mountainous region dissected by steep canyons.
Part of the Teniky site has been known for well over 100 years, as we know from names and dates scratched on the rocks there. Various visitors in the 1950s and 1960s with an interest in archaeology described an amphitheatre-shaped location with man-made terraces, a rock shelter with neatly constructed sandstone walls, a chamber cut into the rock with pillars and benches, and a large number of niches cut in the steep cliffs. Recesses are still visible around some of the niches, suggesting that they could be closed off by a wooden or stone slab.
Among the suggested interpretations were that these structures had been made by shipwrecked Portuguese sailors, or Arabs, or even Phoenicians.