st. lawrence seaway, seaway, waterway, welland canal, upbound, gaillard cut, gatun, graving dock, chagres, ship canal, navigational system, tatar strait, canal, penobscot river, flatboat, passamaquoddy bay, port, motor vessel, erie canal, great slave lake, northwest passage, lockmaster, narragansett bay, sailing vessel, chichagof island, drake passage, downbound, cape cod canal, cape flattery, kerguelen, embarcadero, fontinalis, bayonne bridge, isthmus, purse seiner, suez canal, minas basin, dock, dowl, flyway, shoreline, kattegat, passenger ship, cargo ships, downriver, river, coal shovel, unimak island, wharf, estuary, fundy, bering strait, coastwise, barge, icebound, scows, headrace, lake onega, harbor, bascule bridge, arctic archipelago, paddle steamer, lighterage, wharfinger, windward passage, millrace, piegan, canso, tombigbee river, yenisei river, scheldt, fiord, giovanni da verrazano, tsugaru strait, spillway, pipelaying, strait, bering sea, parana river, seagirt, seaport, ungava, rynd, container ship, conning tower, oxbow, caledonian canal, lockage, saint croix, anticosti, diked, athabaska, sawbill, sternwheeler, riverboat, intracoastal waterway, saone, seaboard, steamship, ferry, canadian maritime provinces, albemarle sound