
洞内の見どころマップ
(名称クリックで、画像が見られます)

SUMMARY OF THE CAVERN
( Click each pictures )
TOTAL LENGTH : 1046m
PUBLIC ROUTE : 400m
INSPECTION POINTS : about 50
CAVERN'S TEMPERATURE : yearly mean 18℃
LIGHTING AND PAVEMENT : completed
STRATUM : CHICHIBU fossil layer(250 million years ago)
NECESSARY TIME : about half an hour