The 12th , 13th and 14th Minesweeping Flotillas from Malta , two groups of minesweeping trawlers and smaller vessels cleared Emptying a channel through the minefields of the Sicilian Channel to Tripoli , removing Removing nearly 200 moored mines .

Sailing vessels and others too tall to pass Motion_directional under the bridges were moored Placing as an `` Avenue of Sail '' downstream of London Bridge with smaller craft in St Katherine Docks .