Kegon Waterfalls are located at Lake Chuzenji (source of the Oshiri River) in Nikko National Park in the city of Nikko, Tochigi Prefecture, Japan. The falls were formed when the Daiya River was rerouted by lava flows. About twelve smaller waterfalls are situated behind and to the sides of Kegon Falls, leaking through the many cracks between the mountain and the lava flows.
At 97 m high, it is one of Japan's three highest waterfalls. In the autumn, the traffic on the road from Nikko to Chuzenji can sometimes slow to a crawl as visitors come to see the fall colors.
で、この「華厳」自体の意味・・・というか由来についても少々 m(_ _)m
Kegon (華厳) is the name of the Japanese transmission of the Huayan school of Chinese Buddhism. This transmission occurred through the Korean Hwaeom tradition.
Huayan studies were founded in Japan when, in 736, the scholar-priest Rouben (良辯; a monk of the Hossou tradition) invited Shinshou (審祥) to give lectures on the Avatamsaka Sutra at Kinshousen-ji (金鐘山寺), the origin of later Toudai-ji. When the construction of Toudai-ji was completed, Rouben entered that temple to formally initiate Kegon as a field of study in Japanese Buddhism, and Kegon-shu would become known as one of the "Nanto Rikushu" (南都六宗, The Six Buddhist Sects of Nanto (Nara). Rouben's disciple Jitchu continued administration of Todaiji temple and expanded its prestige through the introduction of imported rituals. Kegon thought was later be popularized in Japan by Myoue (明惠), who combined its doctrines with those of Vajrayana and Gyounen (凝然), and is most responsible for the establishment of the Toudai-ji lineage of Kegon.
Over time, Kegon incorporated esoteric ritual from Shingon Buddhism, with which it shared a cordial relationship, and continues to this day with limited temples overseas.