Overview
A limestone cave in Saikai, formed in strata some 30 million years old; a national natural monument.
Original supplied text (not re-verified)
A limestone cave in Saikai, formed in strata some 30 million years old; a national natural monument.
References
Confirm opening, prices and booking conditions with the operator before visiting.
百科形式の表示に対応しています。内容は公開情報に基づく個別確認が必要であり、現時点で完全な事実確認を示すものではありません。