Gegharkunik is a province (marz) of Armenia. Its capital and largest city is the town of Gavar.
Gegharkunik Province is located at the eastern part of Armenia, bordering Azerbaijan and the Shahumyan Region of de facto Republic of Artsakh. With an area of 5,348 km2 (2,065 sq mi), Gegharkunik is the largest province in Armenia. However, approximately 1,278 km2 (493 sq mi) of its territory is covered by Lake Sevan, the largest lake in Transcaucasia and a major tourist attraction of the region.
The Yerevan-Sevan-Dilijan republican highway runs through the province.
Lake Sevan is the largest body of water in Armenia and the Caucasus region. It is one of the largest freshwater high-altitude (alpine) lakes in Eurasia. The lake is situated in Gegharkunik Province, at an altitude of 1,900 m (6,234 ft) above sea level. The total surface area of its basin is about 5,000 km2 (1,900 sq mi), which makes up 1⁄6 of Armenia's territory. The lake itself is 1,242 km2 (480 sq mi), and the volume is 32.8 km3 (7.9 cu mi). It is fed by 28 rivers and streams. Only 10% of the incoming water is drained by the Hrazdan River, while the remaining 90% evaporates.
The lake provides some 90% of the fish and 80% of the crayfish catch of Armenia. Sevan has significant economic, cultural, and recreational value. Its only island (now a peninsula) is home to a medieval monastery.
Sevanavank (meaning Sevan Monastery) is a monastic complex located on a peninsula at the northwestern shore of Lake Sevan in the Gegharkunik Province of Armenia, not far from the town of Sevan. Initially the monastery was built at the southern shore of a small island. After the artificial draining of Lake Sevan, which started in the era of Joseph Stalin, the water level fell about 20 metres, and the island transformed into a peninsula. At the southern shore of this newly created peninsula, a guesthouse of the Armenian Writers' Union was built. The eastern shore is occupied by the Armenian president's summer residence, while the monastery's still active seminary moved to newly constructed buildings at the northern shore of the peninsula.
Due to easier accessibility (once it became a peninsula), good highway and railway connections with the Armenian capital Yerevan, a well-developed tourist industry in the nearby town of Sevan, and its picturesque location (although less picturesque than it was before the lake level drop), Sevanavank is one of the most visited tourism sights in Armenia.