Di sản thế giới Vườn quốc gia Phong Nha - Kẻ Bàng đã và đang được đầu tư của chính phủ nói chung và tỉnh Quảng Bình đặc biệt để mở rộng thành một quần thể với các loại khác nhau của du lịch để mời khách du lịch trong nước và nước ngoài. Kể từ thập niên 60 của thế kỷ 20, Phong Nha - Kẻ Bàng khu vực đã được coi như là một điểm du lịch thu hút số lượng khách du lịch giữa các ngành công nghiệp du lịch của tỉnh Quảng Bình | VNU Journal of Science Earth Sciences 27 2011 77-88 Adventurous tourism-a potetial realm of world Natural Heritage - National Park Phong Nha - Ke Bang Tran Nghi Ta Hoa Phuong Vu Van Phai Dinh Xuan Thanh Nguyen Thanh Lan Nguyen Dinh Thai Nguyen Thi Hong Faculty of Geology Hanoi University of Science VNU 334 Nguyen Trai Hanoi Vietnam Received 27 April 2011 received in revised form 5 May 2011 Abstract. World Heritage National Park Phong Nha - Ke Bang has been and is being invested by the government in general and by Quang Binh province in particular to expand into a population with different types of tourism in order to invite domestic and foreign tourists. Since the 60s of 20th century the Phong Nha - Ke Bang zone has been regarded as a tourism spot that attracts the most number of tourists among the tourism industry of Quang Binh province. However since then this National Park has only exploited the exterior caves and has not together with other types of tourism extended its activities in all national Forest s territory. Therefore in this article the authors s group will begin to explain in details of other potential adventurous tour types of Phong Nha - Ke Bang region in particular and of Quang Binh province in general these are to explore the caves in adventurous tours upon limestone mountains with perpendicular cliffs by road 20 cable - riding tours through National Park zone where the cables are put on the highest mountain peaks adventurous eco-tours inside proteozoic forests famous for a most diversified and abundant ecosystem in South East Asia. These are the potential and valuable types of tour assuring a great charm for a huge number of tourists inside and outside the country. 1. Introduction As for Quang Binh people have for many years referred to it as Laotian wind white sand as a barren land struck by poverty. Few people talk of the advantages that nature has given to it. That land is potentially rich regarding tourism possessing beautiful beaches such as
