Lake Avernus, to the west on Naples, near Pozzuoli, lies in the volcanic region of the Phlegraean ('Burning') Fields. In classical mythology this was the site of the Underworld or 'Hades'. The entrance to Hades was said to be in a nearby grotto, inhabited by the prophetess known as the Cumaean Sibyl. In Virgil's epic poem, The Aeneid, the Sibyl helps Aeneas, the Trojan prince, to enter Hades. There his father's ghost foretells his destiny as the founder of the Roman nation. Such associations made Lake Avernus a major attraction for landscape artists and travellers on the Grand Tour. The semi-ruined Temple of Apollo on the eastern shore of the lake to the left, was believed in Wilson's day to have been dedicated to Juno or Proserpina. On the south bank is the cavern of the Cumaean Sibyl.
