Lighthouse of Carapacho
The Lighthouse of Carapacho () is a beacon/lighthouse located along the cliffs of Ponta da Restinga, near the hamlet of Carapacho, civil parish of Luz on the island of Graciosa, the Portuguese archipelago of the Azores. History. The 1883 "Plano Geral de Alumiamento" ("Illumiation General Plan"), proposed the construction of a fourth-order lighthouse, that would flash each minute and have a range. On 11 November 1902, the "Comissão dos Faróis e Balizas" ("Commission on Lighthouses and Beacons") proposed alterations to the General Plan approved in 1883, in which the lighthouse became a fifth-order structure, using  a three-flash 10 second variable range beacon, with a range of use between for clear, medium and tempetuous weather. The lighthouse began function on 26 May 1956, equipped with a diotropic fifth-order optics, with a focal distance of , moved by a clockwork mechanism. This first beacon used an incandescent red acetyline light, in two groups with a range. By 1961, the light became a white beacon, improving its range to A solar valve system was installed in 1978, that allowed the light to become active or disactived based on the atmospheric conditions. It was only in 1987 when  the lighthouse joined the electrical network on the island. At the same time the optics were substituted by a sixth-order lamp with a focal distance of and the lamp was upgraded to a 50 Watt/12 Volt halogen light, supported by battery and secured by exterior network. Architecture. It is situated on the southeastern tip of the island of Graciosa, on a promontory a from the village of Carapacho. It is comparable to similar structures on the island of São Miguel, specifically the lighthouses at Ponta Garça and Ponta do Cintrão. The lighthouse consists of a round concrete tower, constructed  with ribs, rising from a one-story building. Accessible by road, the site is open to the public with access to the interior on Wednesday afternoons.