What is the world's highest altitude lake?

The world's highest altitude lake is Lake Titicaca, located on the border of Peru and Bolivia in South America. It is situated at an altitude of 3,812 meters (12,507 feet) above sea level and has a surface area of 8,372 square kilometers. Lake Titicaca is also the largest lake in South America by volume of water and the 18th largest lake in the world.

The lake is considered sacred by the local indigenous people and is also a popular tourist destination. Visitors can take boat tours to the various islands in the lake, such as Isla del Sol and Isla de la Luna, and explore their rich history and culture. In addition to its cultural significance, Lake Titicaca is also known for its unique ecosystem, which includes many species of plants and animals found nowhere else in the world.