A highlight of the week was a visit to Palawan’s most famous attraction – the Underwater River.
Recognised by UNESCO as a World Heritage Site, this is the world’s longest river below sea level. Its located inside a massive cave, packed with bats and dramatic stalactites. There are well organised small boat tours lasting 45 minutes.
Each small tour boat relies on a single torch for lighting in the otherwise pitch black environment. But the images below are more revealing. These photos were shot at my camera’s maximum setting for low light (5000 ISO). They reveal more than we could ever see with the human eye.