 
<translate> Don amsa wannan tambayar, ya kamata mu san cewa: Dean's Blue Hole shi ne rami na biyu mafi zurfi a duniya da aka sani da ruwan gishiri mai zurfi da ƙofar da ke ƙasa da matakin teku. Saboda haka amsar karshe ita ce rami mai ruwan gishiri mai ruwan shuɗi tare da ƙofar da ke ƙasa da matakin teku. <eng> To answer this question, we should know that: Dean's Blue Hole is the world's second deepest known salt water blue hole with an entrance below the sea level. So the final answer is salt water blue hole with an entrance below the sea level. 