ヘリ機体捜索、サンゴ礁で難航　海自トップ「地形が複雑」
https://news.yahoo.co.jp/articles/0aef3f7b172adfac8b58fd57405409873e0bebdd

参考

https://i.imgur.com/xAVXrgY.jpg

https://i.imgur.com/au1yYw2.jpg

https://i.imgur.com/0Xbu2rq.jpg

https://i.imgur.com/5lOKq6S.jpg