The Perfume Pagoda, known locally as Chua Huong or ‘inner temple’, is at the centre of a very revered and sacred site featuring a maze of mainly Buddhist temples built into the limestone cliffs of Huong Tich. At the heart of this complex lies the Perfume Temple or Perfume Pagoda in the Huong Tich Cave. It is believed that the first temple was built here in the 15th century, although legend declares that the site was actually discovered over 2,000 years ago by a Buddhist monk who was meditating nearby. The mountain foothills are an area of great natural and spiritual beauty filled with streams, tropical plants and temples. There are many pagodas to visit, each offering a different shrine, most of which are Buddhist although one or two are animist. The Perfume Pagoda attracts pilgrims and tourists seeking good luck from the stalagmites and stalactites inside the cave which have been named according to the individual blessing they can bestow. Dun Tien offers prosperity and Nui Co offers the chance of giving birth to a girl whilst Dun Gao translates as a ‘rice stack’ to those hoping for a bountiful harvest. http://www.vietnam-guide.com/hanoi/perfume-pagoda.htm

Phong Nha – Ke Bang National Park - is a national park in Quang Binh province in central Vietnam with an area of 885 km². The National Park has the oldest karst mountains in Asia, which has formed about 400 million years ago. There are hundreds of caves, underground rivers and long underground passages with stalactites and stalagmites. In 2005 the park has been discovered a new species of gecko. The park has about 300 caves and caverns with a total length of 70 km. British and Vietnamese scientists have examined 20 km. There are many underground rivers, streams and waterfalls in the park. Phong Nha - Ke Bang included on the UNESCO World Heritage List. Serious exploration of the caves began only in the 1990s when it first Cavers forced deep into Phong Nha Cave, one of the longest cave systems in the world. Paradise Cave was discovered in 2005, and in 2009 a team found the world's largest cave - the Son Doong. In 2015, the public was given access to two cave systems. Serious exploration of the caves began only in the 1990s when it first Cavers forced deep into Phong Nha Cave, one of the longest cave systems in the world. Paradise Cave was discovered in 2005, and in 2009 a team found the world's largest cave - the Son Doong. In 2015, the public was given access to two cave systems. https://www.vietnamsite.nl/phongnhakeeng.htm