Migrants arrive on a boat at La Restinga dock, in the municipality of El Pinar on the Canary Island of El Hierro, on October 21, 2023. El Hierro, the most westerly of Spain's Canary Islands in the Atlantic, is grappling with an unprecedented surge in migrant arrivals from Africa which have overwhelmed its social services. Around 6,000 migrants have arrived in this remote island -- which is home to just 11,000 people -- between January 1 and October 15, according to the latest interior ministry figures. LEHTIKUVA / AFP, AFP / LEHTIKUVA / STRINGER