Highland lakes are lakes located in areas with high altitudes, usually with clear water and a beautiful natural environment. Since highland lakes are usually located between mountain ranges and have beautiful surroundings, they have become tourist destinations.

Highland lakes are located at higher altitudes, so the temperature is lower and sometimes freezes. Their water source usually comes from the nearby mountain ranges and the water of the lakes is clear and transparent.

Because the environment around the lake is mostly mountains or plateaus, the scenery is spectacular and often called the "Lake of Heaven" or "Lake of Wonderland".

The followings are some of the characteristics of highland lakes and some of the world's famous highland lakes:

1. Erhai: Located in Yunnan Province, China, it is one of the largest highland lakes in China and one of the most representative highland lakes in southern China, surrounded by tea plantations, pine forests, ancient cities, and other landscapes.

2. Namucuo: located in China's Tibet Autonomous Region, is one of the world's highest freshwater lakes, 4,718 meters above sea level, the lake is crystal clear, surrounded by plateau grasslands and snow-capped mountains, is one of the most famous tourist attractions in Tibet.

3. Cancuncagua: Located in the Andes Mountains of Bolivia, it is one of the highest lakes in the world accessible to ships, with an altitude of 3,812 meters, the lake is surrounded by the beautiful scenery of the Andes Mountains.

4. Lake Tiberias: Located in the southern Peruvian Andes, at an altitude of 3,820 meters, the lake is clear and transparent, surrounded by spectacular mountains, and is one of the most famous tourist destinations in Peru.

5. Lake Bratislava: Located in the Tratla Mountains in Slovakia, 1,345 meters above sea level, the lake is surrounded by dense forests and mountains and is one of the most beautiful lakes in Slovakia.

6. Lake Kili: Located on the South Island of New Zealand, it is one of the most beautiful lakes in New Zealand, surrounded by spectacular mountains and glaciers, and is a tourist destination.

7. Pearl Lake: Located on the Qinghai-Tibet Plateau in China, at an altitude of 4,000 meters, the lake is clear and transparent, surrounded by spectacular mountains and grasslands, and is one of the most beautiful plateau lakes in China.

8. Lake Tana: Located in the Andes of Chile, 2,574 meters above sea level, the lake is surrounded by spectacular mountains and volcanoes, and is one of the most beautiful lakes in Chile.

Lake Agmu: Located in the French Alps at an altitude of 2,120 meters, the lake is surrounded by spectacular mountains and glaciers and is one of the most beautiful highland lakes in France.

10. Swiss Lake: Located in the Swiss Alps, 1,414 meters above sea level, the lake is surrounded by beautiful mountains and meadows, and is one of the famous tourist destinations in Switzerland.