Son Doong adventure tours all booked for 2014 travel period
Bookings to Son Doong cave in Quang Binh Province are full for next year, according to Oxalis international travel company, the company permitted to pilot the adventure tour to the world biggest cave, Son Doong.
Four hundred tourists have booked tours to the cave next year, at least US$3,000 each. Six hundred tourists worldwide contacted the company for the tour in 2015. — VNS