West from Alyki, past Thymonia Beach, is the clifftop Moni Arhangelou, an Athonite dependency and working convent, notable for its 400-year-old church (with some ungainly modern touches) and stellar sea views. Those improperly attired will get shawled up for entry by the friendly nuns.
About 1.5km west of the monastery, a small dirt road heads 1km to Livadi Beach , one of Thasos’ most beautiful, with aquamarine waters ringed by cliffs and forests and just a few umbrellas set in the sand.