Chinese fishing boats took half a billion dollars of illegal squid from North Korea. Scientists used satellites to catch them out | University of California
9 implementation a fishing vessel engaged in trawling - YouTube
Lights and shapes
Marine Insight - Every ship at sea needs to display certain day and night signals in order for other ships to identify them Check out our post to find out the different
Lights and shapes
When the Lights Go Down in the City: Reading Navigational Lights
Navigation Lights - RYA Theory | Saltwater Experience