The red "X" marks the Hotel Durrueli
Each grid square covers an area that really measures
500 metres by 500 metres - with the straight line
distance from the harbour to the landward end of
the castle causeway being some 2 kilometres.
Taken from the excellent "StradaNapoli" - a spiralbound
map book covering Naples and its surroundings, as well
as the Bay's three islands... ISBN - 9 788886 782074