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8月24日放送の「NHKスペシャル『絶海に眠る巨大洞窟 〜南大東島・驚異の水中世界〜』」の一場面 (C)NHK
NHK captures world-first footage of stunning scenery in "Japan's last unexplored region"
MANTANWEB編集部
This site uses machine translation. Please note that it may not always be accurate and may differ from the original Japanese text.