Before a captain can safely berth his ship, he has to avoid all the dangers that a particular port may pose. He needs to take into account underwater currents while steering clear of other ships.
जहाज़ को बंदरगाह पर लगाने के लिए, कप्तान को उसे आस - पास के खतरों से बचाकर ले जाना होता है ।