Bailiwick of Guernsey from sea level to at Le Moulin on Sark. There are many smaller islands, islets, rocks and reefs in the Bailiwick. Combined with a tidal range of 10m and fast currents of up to 12 knots, this makes sailing in local waters dangerous. The Bailiwick of Guernsey is a separate jurisdiction in itself, and is in turn also three separate sub-jurisdictions. It does not form part of, and is separate from (but is not independent of, or from) the United Kingdom. The two Bailiwicks of Jersey and Guernsey together make up the Channel Islands. The Islanders have never had formal
Maritime history of the Channel Islands 1790, Guernsey merchants shipped low quality brandy to Madeira, where it was added to their wine to fortify it. Madeira wine becoming famous. Both Islands established Chambers of Commerce as the merchant families expanded and grew in wealth. Tupper, Priaulx, Le Marchant and De Jersey from Guernsey and Ste Croix, Robin, Janvrin and Hemery from Jersey, often intermarrying to avoid rivalry. Part ownership of ships show there were 1,238 people were owners of shares in the 19th Century including 280 mariners and 97 in ship related trades, but also included 55 farmers, 34 widows, 29 spinsters and 25 gentlemen. It