It is understood that in the past, the technology as well as relief of the ground gallery exhibited the pictures, stone carvings, etc., after the mention upgraded, high-precision photographic paper, acrylic printing, title engraved recovery, the introduction of Led underwater lamps of the ink animation, etc., so that the exhibition has become impressive.
Connection to the exhibition hall of the shore and underwater to protect the body in the river bottom, a 91 m long, the slope of the escalator over 30 transportation corridor. This is Asia’s longest tunnel escalators, one-way running time of 3 minutes, the escalator at the end of direct access to the deep water of over 30 m of Led underwater lamps vertical distance up the river.
Through the slope corridor and horizontal corridor, and then crossed a steel door, they entered the 68 m long, the outer diameter of about 3.8 m steel ring visit the corridor. 23 diameter of about 80 cm viewing window of the corridor wall, 8 cm thick double air compression glass, not only can resist the pressure of the river, is also convenient to replace the damaged.
Probe viewing windows, visitors can see 45 meters away, lying in the water of the White Crane Ridge, which is the White Crane Ridge Inscription most concentrated in the middle of about 50 meters, and holds more than 140 inscriptions. Close to the window, beam stone fish and part of the inscription is clearly led high bay lights. If not enough, visitors can with the connection of remote underwater camera system podium, zoom, zoom, displacement, and see all the details of each inscription.