Castello d'Ischia Lighthouse Castello d'Ischia Lighthouse is an active lighthouse located in the municipality of Ischia, Campania on the Tyrrhenian Sea.DescriptionThe lighthouse was established in 1913 and consist of a lantern mounted on a steep bastion, toward the seaside, of the Aragonese Castle built in the 15th century. The lantern, high, is positioned at above sea level and emits a long white flash in a 6 seconds period, visible up to a distance of. The lighthouse is completely automated and is operated by the Marina Militare with the identification code number 2370 E.F.