Photo: thetravel.com

“Unlike in typical terrains where the hiking activities are done and dusted in 2 to 3 hours, Phong Nha is a whole day's activity. The duration may be more than a day, depending on the hikers’ fitness levels and curiosity. Hiking introduces vacationers to some of Asia's hidden treasures. From the caves to the green forest and wild animals, the area is full of life, which makes hikers' experience worth it all,” according to the Traveler.