south east). Islands of the lake Bisentina With an area of , Bisentina is the largest island, and is accessible via a ferry service from Capodimonte. On the island are groves of evergreen oaks, Italian gardens, and various monuments: the church of Saint James and Saint Christopher with its cupola built by the architect Jacopo Barozzi da Vignola; the Franciscan convent; the Rocchina, a small temple dedicated to Saint Catherine. The latter was constructed in an octagonal floorplan by Antonio da Sangallo, over an Etruscan columbarium previously erected on a rocky outcrop on the lake. Another monument, the chapel of the Crucifix, contains frescos of the fifth century. The Malta dei Papi, a former prison for ecclesiastics found guilty of heresy, was shaped from a small cave with a trapdoor placed at a height of . The Etruscans and the Romans left few traces of their stay on the island. In the 9th century it provided refuge from the incursions of the Saracens. About 1250, it became the property of the lord of Bisenzio, who abandoned it and burned it following disagreements with the inhabitants of the island. In 1261, Urban IV reconquered it. The island was destroyed again in 1333 by Louis IV of Bavaria, accused of heresy and excommunicated by the pope. The property of the Farnese family from 1400 onwards, it had a period of prosperity and was visited by many popes. In 1635, it was governed by Odoardo Farnese, duke of Castro, who entered into conflict with the Church, resulting in the total destruction of Castro. The two islands returned to the Church's control but were soon ceded again. The princess Beatrice Spada Potenziani, wife of the duke Fieschi Ravaschieri, owned it until 2017. Where it was sold to a foundation. Martana Located opposite the town of Marta, the island of Martana is reputed to have once guarded the relics of Saint Christine to keep them from falling into the hands of the barbarians. Later, it is said that, during the dominion of the Goths, their queen Amalasuntha was assassinated there. The island is currently private property and no visitors are allowed. Marta outlet The Marta is an emissary of Lake Bolsena to the east of the community of Marta, emptying into the Tyrrhenian Sea. After passing through Marta, Tuscania and Tarquinia, it reaches the sea near Lido di Tarquinia. Salt pans have been constructed between