Researchers discovered the body of water—now the largest known underground thermal lake in the world—while investigating a column of steam rising from limestone.

There, they found an expansive system of caves complete with thermal springs. One chamber housed a massive body of water that measured 454 feet (138 m) in length and 138 feet (42 m) in width.

Stockton's McLeod Lake turned pink this week, as scientists dumped dye in the hope of figuring out why there are toxic algal blooms some years but not others.

A research expedition in 2024 has identified Lake Neuron in a cave in southern Albania as the largest underground thermal lake. Discovered initially by Czech researchers, new 3D scanning ...

Researchers have returned to an underground thermal lake they first came across in 2021 in southern Albania and confirmed it is the largest of its kind known in the world.

Researchers discovered the largest underground thermal lake in the world at the bottom of an “abyss.” The lake holds more than three Olympic swimming pool’s worth of water. Future ...

Measurements with the scanner confirmed that it is indeed the world’s largest underground thermal lake, revealing it to be 138.3 meters (452.8 feet) long and 42 meters (137.8 feet) wide, with a ...

Huge thermal lake — largest in the world — discovered deep below Albania. Take a look By Irene Wright. February 18, 2025 4:39 PM.

Researchers have returned to an underground thermal lake they first came across in 2021 in southern Albania and confirmed it is the largest of its kind known in the world.