Knownly, Hang Toi was conducted surveys by the British Royal Cave Exploration Association in 1990 and 1992. Hang Toi has a total length of 5.258m, 20m wide and 80m high with with thousands of stalactites of diverse shapes.

Put into operation in June 2011, Hang Toi in Phong Nha - Ke Bang National Park is a favourite destination of many tourists.

Besides, in order to attract foreign and domestic tourists, the Center has opened tourism services such as zipline, water sport games and mud bad...

At present, the Phong Nha - Ke Bang Tourism Center is completing procedures to combine tours connecting three locations: Sinh Ton Valley – Thuy Cung Cave – Dark Cave for two days and one night, contributing to diversifying forms of tourism in Phong Nha - Ke Bang National Park.

Translated by Nhu Y
(Source: Quang Binh Portal)