Île Aganton is an island on the north coast of Brittany, adjacent to Île-Grande which is to the east. Its size is about 1 km west to east, and it has a maximum width of about 500 m. It is accessible on foot at low tide. It is in the commune of Pleumeur-Bodou.
On the coast, Trébeurden lies to the south, and Trégastel to the east.
Wikipedia https://en.wikipedia.org/wiki/Île_Aganton
Coordinates 48°47'54.035" N -3°35'45.713" E
