We Take Turns: The Two Nations That Pass One Tiny Island Back And Forth
Category: Geography & Maps 19th March 2026
There is, midriffing the mouth of the Bidasoa river between France and Spain, a postage-stamp island so small it requires more paperwork than a cabinet reshuffle. Known in French as Ile des Faisans and in Spanish as Isla de los Faisanes, the place is uninhabited, patted by reeds, and treated by two modern states as if it were a particularly fussy teapot that must be polished by alternation.
In plain terms: for centuries France and Spain have agreed to share sovereignty over this island. They do not share it simultaneously like a communal flatshare where everyone grows basil and argues about the heating; instead they alternate control in six-month stretches. One nation holds the island, then hands it over to the other, like parents swapping a child on a Saturday. Except the child is a tuft of grass and perhaps a particularly opinionated duck.
It is not some newfangled attempt at Franco-Spanish togetherness. The arrangement dates back into the 17th century and exists because rivers move, treaties fidget, and diplomats prefer tidy solutions that involve very little actual walking. Historically the island was a neutral meeting place for negotiations. Today it stands as a legal curiosity: jointly owned on paper, ceremonially exchanged in practice, functionally empty on the ground.
Visitors will find no customs booth, no cafe serving tapas with a sense of jurisdiction, nor any traffic wardens asking for two currencies. There is, however, a monument to the absurd human habit of turning geography into paperwork. The island's existence forces one to think about borders not as jagged lines on a map but as behaviours enacted by people with pens and a fondness for ritual.
To stand on the riverbank opposite is to see sovereignty as a theatrical prop: a place that changes nationality more often than some politicians change their opinion. If you enjoy bureaucratic stagecraft, this tiny isle is a masterpiece. If you enjoy logic and common sense, you will nevertheless admit it has a certain melancholy charm: two nations politely sharing an island because, frankly, no one quite wanted the bother of looting the reeds.