Ryuudou cavern

is a large cavern within Mount Enzou and under Ryuudou Temple in Fuyuki City, Japan. It is the location of the Fuyuki Greater Grail of the Fuyuki Holy Grail Wars.
==Characteristics==
Image:Ryuudou underground 2.png|
Image:Ryuudou underground 3.png|
Image:Ryuudou underground 4.png|
The cavern is three kilometers in diameter.Fate/stay night - Heaven's Feel route - Day 16: FINAL - Interlude 16-2: Country of the dark queen
==History==
==References==
Category:Geography in Fuyuki City