Ancient Wonder of Armenia: Lake Sevan

The largest lake in the Caucasus and one of the oldest on the planet Sevan holds secrets that date back millions of years. 📍Where is it: Armenia, on the Armenian Highlands, at an altitude of about 1,900 metres above sea level. It's the largest lake in the Caucasus (area ~1,240 km², depth up to 83 metres). 🕯How old is the lake? The numbers are staggering. The first lava dam that turned the valley into a lake formed approximately 5 million years ago, during the Middle Pliocene, when volcanic activity blocked the valley of the ancient Paleo-Hrazdan River. Later, around 4,400 years ago, a powerful earthquake altered the lake's level and even affected the lives of people in the region. Some scientists consider Sevan a relict of an ancient sea that once existed on the Armenian Highlands. Sources note: "Lakes Sevan and Van are of dammed origin and formed simultaneously, roughly at the boundary of the Pliocene and Post-Pliocene," with andesite lavas creating the dam averaging 5 million years in age. Further evidence of the lake's antiquity comes from archaeological finds ceramics and animal bones dating back 6,270 years, and marine fauna remains in even older sediment layers. 💎What makes Sevan unique? · Microbialites — fossilised structures created by ancient microorganisms called cyanobacteria. They formed on the lake bed and can now be found both underwater and on land where the water has receded. · Endemic trout "ishkhan" — the "princely fish" found only here. Its population is now being restored. · A changing fate: During the Soviet era, the lake's water level dropped by 18 metres due to hydroelectric projects on the Hrazdan River. The island of Sevan, where the ancient monastery stood, became a peninsula. Today, the lake is being restored via a 49-km tunnel from the Arpa River. ⭐️When to visit and what to do: · Best time: July–September, when the water warms to 18–24°C. In harsh winters, Sevan freezes over. · What to see: the Sevan peninsula with its 9th-century monastery, beaches, and boat trips. · Sevan National Park — a protected area with unique wildlife and landscapes. 📌Practical tips: · The nearest town is Sevan, about an hour's drive from Yerevan. · Swimming is possible, though deeper water stays cool even in summer. #naturalwonders #ancientwonders