The ruined monastery of Surp Tovmas (Սուրբ. Թովմաս / St. Thomas), located on the southern shores of Lake Van, is perched in isolation almost halfway up a mountain and north of the village Kantzag (Gandzak), currently Altinsaç, Turkey. Believed to have been built in the 11th century, it is rarely visited because of the difficult ascent to an elevation of 6,600 ft / 2,000 m above sea level.