According toOxalis, the only operator allowed to run tours of the cave, visitorsrate the tour as a once-in-a-lifetime adventure with professional tourguides and staff, who pay careful attention to the health and safety ofthe trekkers and provide amazing service and supplies.
The tour has received a lot of positive feedback on TripAdvisor, the world’s largest travel site, the firm said.
Oxalis provides tour group members with the necessary caving equipmentand has prepared a landing field for helicopters in case of emergency.In addition, the operator includes public liability insurance in theregistration fees.
To ensure no damage is caused tothe cave ecosystem, the water quality of the river inside the cave isexamined every six months, while the campsites are decontaminatedregularly.
All of the camps use composting toilets in order to eradicate paper waste and protect the delicate ecosystem.
Thanks to these measures, the natural beauty of Son Doong cave has been preserved perfectly after two years of operation.
Oxalis revealed that Son Doong tours are fully booked this year, whilemore than 400 Vietnamese and hundreds of international explorers arestill on the waiting list.
Son Doong Cave, whichscientists believe was formed 2-5 million years ago, was firstdiscovered by a local resident in 1991.
In 2009, a group of British scientists from the British Cave ResearchAssociation prepared the cave for public access, in a limited capacity,after extensively surveying the area.
Son Doong is at least 6.5km long, 200m wide and at least 150m high.Its largest chamber is a whopping 250m high – high enough to accommodatea 40-storey skyscraper.-VNA