On the transversal route between Boulouparis and Thio, the Col de Nassirah (349 m) connects the Nassirah valleys to the Thio river and provides a magnificent view over the islets of the East Coast and the Thio Valley.
Nickel was discovered near Thio in 1876, and the whole district still lives off the nickel mining industry.
The region of Thio has a strange and varied beauty, with the delta formed by the Thio river around the rocky islet of Bota Méré, a ring of hills whose green sides contrast sharply with the fierce red of the summit mines, the white sands of Moara and the grey shores of Ouroué.
