Beneath its misty surface, southern Europe's Lake Ohrid is the most densely biodiverse lake in the world. Now, fishermen are helping save its "living fossils" from extinction.

Often shrouded in mist, Lake Mashu is the clearest lake in Japan – and seeing its surface is said to seal your fate.

In 2018, a hot, dry summer descended on the English Midlands, and as the waters of the Ladybower Reservoir fell, the lost village of Derwent emerged.

Once a year, Mongolians from different provinces, tribes and religious beliefs gather at Lake Khövsgöl to celebrate their shared connection to nature.

Lake Karakul is almost a Central Asian version of the Middle East’s hyper-saline Dead Sea – although that hasn't stopped visitors from trying to sail here.

From a distance, Lac Assal may look like tropical waters fringed with powdery white sand. Up close, it’s an inhospitable alien landscape.

For 170 years, the river that gave Belfast its name has been buried underground in a hidden tunnel. We descended into the city’s cavernous underbelly to find it.

Eel Pie Island is one of around 180 islets on the Thames, born of the river’s meandering, 184-mile path from the Cotswold hills to the North Sea.