At the location "Agios Panteleimon", 3 kilometers away from the village of Trizina and at the Aderes mountain slope, lies the Monastery of the annunciation of Virgin Mary, with 14 monks. It attracts many pilgrims every year and is located in the verdant countryside.

The Monastery built by the Archimandrite Epifanio Theodoropoulo and established in 1976 by the then Metropolitan of Hydra, Spetses and Aegina island, Mr. Ierotheo.

The first monks occupied the Monastery at the 15th of April 1977, day of the celebration of Zoodochos Pigi. The present church was inaugurated by the late Bishop of Synadas, Mr. Germanos, after five years in 1982, at the day of celebration of Zoodochos Pigi.

It is the second avaton (Άβατον, prohibition on entry for women) male Monastery of the Metropolis of Hydra island and is considered a modern miracle because it's been buit without ecomomical resources, but with the hard hand-word of the monks and volunteers.

The Monastery's first Abbot was Simeon Koutsas, after him Mr. Isichios Pepas and continuing was Mr. Spiridon Pavlopoulos.