The six tourists, arriving by air from Ho Chi Minh City, are visiting Quang Binh in a package tour permitted by the provincial People’s Committee. They will experience services at Chay Lap Farmstay, explore the Tu Lan cave system, and wrap up their trip on October 17. Quang Binh is now opened to travellers from COVID-19-free zones (green zones) and those applying the Prime Minister’s Directive 15/CT-TTg on pandemic prevention and control (yellow zones). Those from “yellow zones” can only take part in “sandbox” package tours or certain services on small scale to ensure safety. Quang Binh is dubbed the "Kingdom of caves" with hundreds of caves of various sizes as well as incredible mountain scenery and sprawling beaches. It is home to Son Doong Cave, accredited as the world’s largest and most beautiful natural cave by the World Records Union and the World Records Association, as well as the UNESCO-recognised world heritage site Phong Nha - Ke Bang National Park./.