The King and I: Exiled To Patmos, Part 2
"A common misconception in commentaries and popular prophetic writings is that the island of Patmos, where John was exiled, was a sort of Alcatraz "
A very detailed description of Patmos and where John might have been when revelation was happening.
Including being able to see the Island of Thera Santorini with that lethal volcano.
Well worth reading