Phong Nha National Park, Vietnam (Shutterstock)

The Wanderlust said "Caving doesn’t just have to be a pastime for daredevils donning equipment and crawling on their bellies into the dark. If you're a beginner, here are some of the most spectacular worldwide caves you can access without having to fear navigating pitches and squeezing through small gaps".

According to description of the Wanderlust, Phong Nha is situated at the center of Quang Binh province in north-central Vietnam, 500km south of Hanoi. Phong Nha's magnificent grottos are filled with spectacular stalagmites and stalactites and are distinctive examples of a complex karst landform. This has resulted in underground rivers and the development of a maze of caves. It's no surprise that the caves have been granted UNESCO world heritage status in 2003.

Besides, Phong Nha is also a fossil-rich site and a location where new caves are still being discovered. The entrance to the 44.5km, nine-cave system is via an underground river that connects with the Son River – tour boats can penetrate inside to a distance of 1,500m.

There are lots of trekking, kayaking and swimming opportunities locally too. Be sure to lookout for a multitude of beautiful butterflies if you are there in March, April or May.

The top 5 incredible explorable caves also includes Waitomo Cave in New Zealand, Indian Caverns in United States, Dan-yr-Ogof Cave in Wales, Eisriesenwelt Cave in Austria.

By Nhu Y
(Source: ngaynay.vn/Wanderlust)