Tu Lan Cave System (About 40km from Phong Nha)
One of the most beautiful untouched areas of Vietnam showcasing minority cultures amongst real jungle, rivers and waterfalls. There are currently 10 known caves in Tu Lan sitting untouched for thousands of years. A special permit is required to visit this area which is only available through local responsible tourism operator – Oxalis Caving Tours. This area is ripe for exploring with plenty of underground rivers and waterfalls! Tu Lan is the Ha Long Bay of Central Vietnam hidden amongst the mountains! edit
Of the largest and most beautiful caves in the world, this is close to Hang Son Doong (the world’s biggest cave). To see this cave involves a day trek through beautiful jungle and valleys, and through a minority village, and then an overnight stay in the cave. Tours can be arranged at Easy Tiger in Son Trach or Phong Nha Farmstay in Cu Nam.
Hang Son Doong
The world’s biggest cave, discovered as recently as 2009. A cave so big that a whole Manhattan city block, skyscrapers and all, could fit inside of it. Tours started in 2014 and numbers are restricted to only 10 tourists/week during the caving season from February to late August.