Fairly often several days of celebrations - both secular and religious - will span the
particular date that's shown....
Photos from some of the events can be seen here.. http://www.pbase.com/isolaverde/ischfest
Timetable reproduced from "Ischia - i sentieri della luce" - a leaflet published
in 2009, with a welcome message from the Bishop of Ischia, available for download
It's also a very good source of information about the island's many places of worship!