Harwich, Essex. Several shots of buoys at a warehouse on the quay. Various shots show the Trinity House Vessel 'Siren' setting out to sea to carry out maintenance on buoys; a naval flag showing the Union Jack and the Trinity House Jack is hoisted; officers are seen using sextants and plotting their course on a chart. Nice M/S of a sailor tying on a life jacket. Sailors drop anchor beside a buoy, hoist weather balloons and ring bells on the ship. The buoy is cleaned of mussels and limpets...
2 48° South 074° West
"Angostura Inglesa" is, without a doubt, the most important natural obstacle in navigating the South American channels, as it is a winding step that requires two changes of course close to 90 °, subject to a tidal regime and Considerable currents, which is also affected by the frequent bad times of the Gulf of Penas, forces sailors to face it with caution and take adequate security measures.
