More of a fortress than a monastery, this is one of Santorini's most impressive sites. The monastery now houses a museum where you can explore various ecclesiastical texts. There are also numerous hiking trails in the surrounding hills.
More information on Santorini.com http://www.santorini.com/churches/profiti_ilias_monastery.htm
Phone +30 22860 31812
Address 84700 Pyrgos, Greece
Coordinates 36°22'6.143" N 25°27'48.359" E