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  2. Iceboat - Wikipedia

    en.wikipedia.org/wiki/Iceboat

    Ice boat on Saint Lawrence River, Quebec City, c. 1858–1860 Classic iceboats on the Hudson River at Barrytown, NY Ice Boating in Toledo, Ohio. The history of iceboating began in Europe in areas where smooth ice was found in the bays of the Baltic Sea and the canals of the Netherlands during the little ice age. Initially boats were used for ...

  3. Circle Line Sightseeing Cruises - Wikipedia

    en.wikipedia.org/wiki/Circle_Line_Sightseeing...

    On June 15, 1945, Frank Barry, Joe Moran and other partners merged several companies to form Circle-Line Sightseeing Yachts, offering boat tours of New York operating out of Battery Park. Circle Line cruise, 1973. Photo by Arthur Tress. Old Circle Line Sightseeing Logo The Circle Line XVII touring the Harlem River

  4. Polaris (icebreaker) - Wikipedia

    en.wikipedia.org/wiki/Polaris_(icebreaker)

    Polaris is a Finnish icebreaker. Built in 2016 by Arctech Helsinki Shipyard, she is the most powerful icebreaker ever to fly the Finnish flag and the first icebreaker in the world to feature dual-fuel engines capable of using both low-sulfur marine diesel oil (LSMDO) and liquefied natural gas (LNG).

  5. Icebreaker - Wikipedia

    en.wikipedia.org/wiki/Icebreaker

    For this reason, in the Baltic Sea, the Great Lakes and the Saint Lawrence Seaway, and along the Northern Sea Route, the main function of icebreakers is to escort convoys of one or more ships safely through ice-filled waters. When a ship becomes immobilized by ice, the icebreaker has to free it by breaking the ice surrounding the ship and, if ...

  6. Baltic Sea - Wikipedia

    en.wikipedia.org/wiki/Baltic_Sea

    The Helsinki Convention on the Protection of the Marine Environment of the Baltic Sea Area includes the Baltic Sea and the Kattegat, without calling Kattegat a part of the Baltic Sea, "For the purposes of this Convention the 'Baltic Sea Area' shall be the Baltic Sea and the Entrance to the Baltic Sea, bounded by the parallel of the Skaw in the ...

  7. Ice navigation - Wikipedia

    en.wikipedia.org/wiki/Ice_navigation

    Ice navigation occurs wherever a waterborne vessel transits through sea ice.One of the more common regions for ice navigation is the Baltic Sea, where vessels visiting the Baltic States will make their way through first year ice in the winter months, often with an icebreaker, or with ice reports, charts and data provided by meteorological offices.

  8. Volga–Baltic Waterway - Wikipedia

    en.wikipedia.org/wiki/Volga–Baltic_Waterway

    The Volga–Baltic Waterway (boxed area) and the entire Volga River in relation to the Caspian Sea and Black Sea. In Soviet times, the Mariinsk canal system was constantly improved. Two locks were built on the Svir River (in 1936 and 1952); 3 locks were built on the Sheksna River. Major improvement of the Volga–Baltic Waterway took place in ...

  9. Arctic shipping routes - Wikipedia

    en.wikipedia.org/wiki/Arctic_shipping_routes

    The Transpolar Sea Route remains a mostly unused route as ships going through it must traverse a permanent sea ice sheet, requiring advanced ice breaking capabilities. The TSR was only accessible 10 days in 2010, with icebreaker type vessels, and those 10 days were still considered as unsafe.