50 kilometers away from Dong Hoi City to Ho Chi Minh City is zip-line amusement park in Phong Nha – Ke Bang. Zip-line is dedicated to those who are interested in discovery and adventure. There are 2 types of swing. One is swing exploring caves and the other is swing swimming in river. Both are fully provided with modern and specialized equipment. Participating in this type of tourism, tourists will have an opportunity to swing on 400 meter cable to contemplate the overhead beauty of Phong Nha – Ke Bang and to experience and adventures tour. After swinging to the other side of Chay River, tourists may paddle on their own to get to Dark Cave. The cave has an entrance of 10 meters in width, 40 meters in height, and 5,528 meters in length. Passing the entrance, tourists will see a bell-shaped stalactite. Continuing to go further, tourists will encounter another stalactite shaped a turtle that local people call turtle god. The further you go, the more diverse stalactites you will see. Especially, there are stalactites on which ferns live parasitically. Dark Cave is habitat of a large number of animals such as bird, bat, and Ha Tinh monkey, one of primates only living in Phong Nha – Ke Bang National Park. After visiting Dark cave, tourists continue swinging to the middle of Chay River to swim in fresh blue water. Despite of being 10 kilometers in length, Chay River is in possession of beautiful cliffs and great biodiversity with many aquatic animals specific to this world heritage, of which two species of fishes are listed in the Red Book.
To bring this zip-line tour into exploitation, the Tourism Center of Phong Nha – Ke Bang has invited a prestigious company with long experience in adventurous tourism to design cable and instruct swing methods. The first three Vietnamese athletes who had climbed to Everest Mount have been invited to training courses of Phong Nha – Ke Bang Tourism Center.
Thus, along with adventurous tours exploring Son Doong Cave, the launch of zip-line tours contributes to the diversification of tourism types in Phong Nha – Ke Bang in particular and in Quang Binh tourism in general. On occasion of the launch, the price for a zip-line tour in Phong Nha – Ke Bang is discounted, only $ 13 for a tour. This discount will be applied until the end of 2014. Since January 1st 2015, the official price for a tour is $ 17, equal to 350,000 VND. The tour price includes entrance fee, swing from animal observatory to Dark Cave, kayaking, swimming, water games, tour monitors, exploring equipment and tour insurance.