British Admiralty Nautical Chart 2812: Nigeria, Lagos Harbour. Tin Can Island Terminal is a standard nautical chart. Charts within the series consist of a range of scales, useful for passage planning, ocean crossings, coastal navigation and entering port. Mariners should always use the largest scale nautical chart appropriate to their needs. In particularly busy seaways such as the English Channel, Gulf of Suez and the Malacca and Singapore Straits, the standard nautical charts are supplemented by mariners' guides which provide advice on route planning in these complex areas. Admiralty nautical charts are corrected to the latest Not to (NTM) by our trained cartographer at the point of sale. It is the mariner's responsibility to maintain and correct the chart onward to be in compliance with SOLAS regulations and to ensure safe navigation.