The 1.2 million euro (US$1.7 million) French-made balloon can hold up 30 people at a time, according to the investor, Hon Tam Nha Trang Beach Joint-Stock Company.

Each balloon flight, which will cost $10 per person and last about 20 minutes, will offer visibility over a radius of 15-20 square kilometers, the company said.

The operation hours are 7 a.m. until 9 p.m. Maximum wind force during the flight will be 35 km/h.

Anyone who has a heart, nervous, or mental condition, is inebriated or has a fear of heights is not advised to fly.

Reported by Phan Huy Tram