藍洞(意大利语:-{Grotta Azzurra}-)是位於義大
藍洞(克罗地亚语:-{Modra špilja}-)是位於克羅埃西亞
斯摩洞(Smoo Cave)形成
| colspan='5' The Nereo Cave is a huge underwater sea-cave situated on
Rosh HaNikra (; Hebrew: ראש הנקרה, or Ras an-Naqoura, 'head of the gr
祖母绿洞(意大利语:Grotta dello Smeraldo)是一个海洞,位于意大利南部阿马尔菲海岸的小镇康加德马里尼。
Sea Lion Caves are a connected system of sea caves and caverns open to
Fingal's Cave is a sea cave on the uninhabited island of Staffa, in
大藍洞(Great Blue Hole)是全
-{H|zh-tw:馬爾他;zh-cn:马耳他;zh:馬耳他;}-
The Cathedral Caves are a series of sea caves on the Catlins Coast in
比米尼路(英語:Bimini Road),又稱比米尼墻(Bimini Wall),是北美洲巴哈馬群島北比米尼島水下的一組岩石地形。這組地
Portbraddon Cave (also spelled Portbradden, Portbraddan) is a relict