Île Callot, Tidal island in Carantec, France.

Île Callot is a granite tidal island 2.2 km long and 10 to 500 m wide, facing the port of Carantec. A 760 m causeway, covered and uncovered by the tide, links it to the mainland; further west, the Passe aux Moutons sandbank is passable around mid-tide. Its highest point, 38 m, is at the chapel.

The Notre Dame de Callot chapel was founded in 513 when a Breton leader placed the first stone at this elevated location. This structure marks the early Christian settlement of the island.

The Breton name Enez-Itron-Varia-ar Galloud, 'island of Our Lady of All Power', gave the French form Callot after Riwal's 513 chapel foundation. The chapel remains a pilgrimage site, and each 31 December, when the causeway is dry at low tide, people from the surrounding area cross to ask the Virgin's protection.

The causeway from Carantec is 760 metres long and is covered by the tide; cross only when it is dry. Further west, the Passe aux Moutons sandbank is passable around mid-tide. Check local tide times for the return crossing.

The northern section functions as a protected environmental zone, providing shelter for numerous bird species. This natural area often goes unnoticed by visitors focusing on other parts of the island.