The Convent of the Poor Clares includes a 'putridarium' where deceased nuns were placed in stone chairs to dehydrate before their skeletons were moved to an ossuary.
The castle grounds include a prison that once held political dissidents during the Italian Risorgimento.
The island islet itself is the result of a trachyte lava eruption that occurred roughly 300,000 years ago.
During the 18th century, the castle hosted nearly 2,000 families who sought safety within the walls during frequent incursions.
The site features a small chapel dedicated to Saint John Joseph of the Cross, the patron saint of Ischia.
The Aragonese Castle is a fortified citadel located on a volcanic rocky islet connected to the island of Ischia by a 220-meter stone bridge. Built by Hiero I of Syracuse in 474 BC, the site was later expanded significantly by Alfonso V of Aragon in the 15th century. It features a labyrinth of tunnels, terraced gardens, and the remains of several churches, including the Cathedral of the Assumption. The fortification served as a refuge for the local population against pirate raids for centuries. Today, it operates as a privately-owned historical site accessible to the public via an elevator or a steep walking path. The island complex spans approximately 56,000 square meters. The structure contains the Convent of the Poor Clares, notable for its 16th-century graveyard with stone seats used for the 'mummification' of deceased nuns. It is strategically positioned at the eastern entrance to the Gulf of Naples.
The viewing terrace near the Convent of the Poor Clares offers a panoramic perspective of the Ischia shoreline.
Wear footwear with high-traction soles, as the volcanic stone pathways can be steep and slippery.
Bring a bottle of water, as the climb through the terraced gardens lacks frequent vendor access.
Use the elevator if you have mobility concerns, but walk back down to fully experience the architectural layers.
Avoid visiting during the peak heat of midday in July and August, as the stone reflects significant sun radiation.
Open daily throughout the year, including public holidays.
Respect the religious sites within the complex by maintaining a quiet volume and dressing modestly (shoulders and knees covered).
