Motu Nao is the Marquesan

Marquesan language

Marquesan is a collection of East-Central Polynesian dialects, of the Marquesic group, spoken in the Marquesas Islands of French Polynesia. They are usually classified into two groups, North Marquesan and South Marquesan, roughly along geographic lines....

 name for a small rock island in the southeastern Marquesas Islands

Marquesas Islands

The Marquesas Islands enana and Te Fenua `Enata , both meaning "The Land of Men") are a group of volcanic islands in French Polynesia, an overseas collectivity of France in the southern Pacific Ocean. The Marquesas are located at 9° 00S, 139° 30W...

, approximately 22 km (13.7 mi) northeast of Fatu Hiva

Fatu Hiva

Fatu Hiva is the southernmost of the Marquesas Islands, in French Polynesia, an overseas territory of France in the Pacific Ocean...

. The French

French language

French is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...

 name for the island is Rocher Thomasset, which in English is Thomasset Rock.

At low tide, the top of the island rises to 4 m (13 ft.) above sea level, and is sometimes almost awash at high tide.