The spectacular Castello Aragonese, towering atop an islet just off the main shore, landmarks Ischia Ponte. The town's name (Ischia Bridge) refers to the striking causeway built in the mid-15th century to connect it with the rest of Ischia. The little island was settled as early as the 5th century BC, when the tyrant Hiero of Syracuse came to the aid of Cumae in its power struggle against the Etruscans. This was his reward: an almost unassailable natural islet more than
300 feet high, on which he erected high watchtowers to monitor movements across the Bay of Naples. The island changed hands in the succession of centuries, with Greeks from Neapolis, Romans, Visigoths, Vandals, Ostrogoths, Saracens, Normans, Swabians, and Angevins successively modifying the fortifications and settlements. Ischia Ponte was where the population of Ischia sought refuge in 1301, when Epomeo's last eruption buried the town of Geronda on the other side of the causeway. The new influx of inhabitants led to a flurry of building activity, most notably the Cattedrale dell'Assunta, built above a preexisting chapel that then became its crypt. In the following century the Angevin castle was rebuilt by Alfonso of Aragon (1438), who gave it much of its present form. However, its turbulent history continued well into the 19th century, when it was seriously damaged by the English in their attempts to dislodge the French during the Napoleonic Wars (1809).
Two hours should be enough to give you a feel of the citadel, stroll along its ramparts, and visit its key religious sites. Don't miss the frescoed 14th-century crypt beneath the cathedral (Giotto school), although the ruined cathedral itself, with its noticeable 18th-century additions—such as the baroque stucco work—is quite atmospheric. Occasional exhibitions are held in the Chiesa dell'Immacolata, and there are two bars. Access to the citadel is via an elevator from the base, and the various walks at the top are clearly signposted. While taking in the whole site, enjoy the stunning views from the various vantage points.
Castello Aragonese, Ischia Ponte, 80077, Italy