Puerto Princesa Underground River – Philippines If you’re more into tropical vibes but still want your cave fix, head to Palawan in the Philippines.

A tropical island with soft sands and warm seas is an ideal honeymoon destination. Here are some of the best, most romantic ...

National park caves all over the nation are a great way to explore cool things underground.

Turns out there are snowmelt-fed underground streams that flow through the cave and drain into the Kaweah River system, ...

Here in Kentucky, the excitement of an underground adventure doesn't have to end after the bus at Mammoth Cave National Park drops tourists back off at the visitors center. Here are five caves to ...

Mammoth Cave National Park is Kentucky's only national park, but it isn't the state's only cave open to the public.

The park held its first ever underground pool party, with guests getting on floats and drifting through water in Cave Branch Cave. The cave was decorated with LED lighting with music playing.

News This underground cave in NSW is one of Australia’s top 20 hidden natural wonders worth the road trip A new study has ranked Broken Hill’s Daydream Mine among Australia's best secret road ...

Stunning cave at 'centre of Earth' will kill you within minutes The Cave of Crystals has been described as one of the seven geological wonders on the planet - but tourists are banned because of ...

News World news Natural wonders Cave dubbed 'world's most breathtaking secret' could kill you within minutes The Cave of the Crystals is one of the most stunning geological wonders at the centre ...