The first flight to visit En (Swallow) Cave in the central province of Quang Binh by helicopter will be organised tomorrow by a travel operator and the Northern Viet Nam Helicopter Company.

Three 20-30 minute flights will be scheduled each day until next Tuesday. Passengers will board at Phong Nha and land near the mouth of the Swallow Cave. The flights are organised to celebrate the 410th anniversary of Quang Binh Province.

The tour fee ranges from US$170 to $300 per passenger. The operator told Viet Nam News that they would expand the service if it runs smoothly.

Swallow Cave is the world's third largest cave, following Son Doong of Viet Nam and Deer of Malaysia. — VNS