On the evening of 12 August, a total solar eclipse will sweep across northern and eastern Spain, the Balearic Islands, Iceland, and Greenland, while much of the rest of Europe — including Belgium — will witness a dramatic partial eclipse. For Spain, it will be the most significant such event in over 120 years, and authorities, small villages, and tourism operators are scrambling to prepare for what promises to be a once-in-a-generation spectacle.

The path of totality will cut through northern and northeastern Spain, including the Balearic archipelago of Mallorca, Menorca, Ibiza, and Formentera. Among the most sought-after viewing spots is Somosierra, a mountain village of just 93 residents sitting at 1,440 metres above sea level on the northern edge of the Madrid region. Its location offers one minute and 29 seconds of total eclipse — the longest of any site close to the Spanish capital. Up to 2,000 visitors are expected, though local officials warn that five times as many people could arrive on the day, many of them spontaneously. The village council has offered 400 official registration slots and is training volunteers to manage crowds, liaise with police and civil protection services, and communicate safety guidance. A similar situation is unfolding in Arcos de las Salinas, a village of just 80 inhabitants in the Teruel province of eastern Spain, which sits at the foot of the largest astronomy outreach centre in Europe. Locals fear being overwhelmed by visitors with no hotel capacity or services to absorb them, with one resident summing up the mood bluntly: