Phong Nha-Ke Bang National Park

One of the best places to visit in Vietnam for caving, World Heritage-listed Phong Nha-Ke Bang National Park is a dramatic karst mountain formation honeycombed with huge caverns, which are home to superb stalactite and stalagmite displays.

The most popular destination within the park is the Paradise Cave, which extends for a staggering 31 kilometers below ground.

The yawning caverns here are truly spectacular. Tu Lan Cave is a "wet cave," and a visit here includes swimming through the cave-systems river.

The other most popular excursion is to the Phong Nha Caves, where the interior is accessed by boat.

You can access Phong Nha-Ke Bang National Park from Son Trach.