Calydon was a Greek city in ancient Aetolia, situated on the west bank of the river Evenus, 7.5 Roman miles from the sea. Its name is most famous today for the Calydonian Boar that had to be overcome by heroes of the Olympian age.
Wikipedia https://en.wikipedia.org/wiki/Calydon
Address 30014, Greece
Coordinates 38°22'29.939" N 21°32'1.981" E