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(Click for frequent words.) 73 Lawrence seaway 55 St Lawrence Seaway 53 St.Lawrence 52 Grande Caribe 52 Port Joli 50 Reversing Falls 50 Kattegat 49 Lachine Canal 48 St. Lawrence Seaway 48 BOTTOMS UP PIZZA 48 Welland Canal 48 Gaspé Peninsula 47 Searchmont Montreal 47 Namakan Lake 47 Grande Terre 47 Bras d' Or 47 Garonne River 47 Arctic Archipelago 47 seaway 47 Tha Phut Thailand 47 Saint Lawrence Seaway 47 Saanich Inlet 47 Chef Menteur Pass 46 Okeechobee Waterway 46 Samuel Risley 46 Forth estuary 46 Svalbard islands 46 tidal inlet 46 Cobscook Bay 46 Trent Severn 46 Canso Causeway 46 Ameland 46 Scotian Shelf 46 Blanc Sablon 46 Nicomekl River 46 Crinan Canal 46 roundtrip voyages 46 Arichat 45 Flooding hinders 45 Kugluktuk Nunavut 45 HMCS Montreal 45 Otonabee River 45 Kerguelen 45 Giant salvinia 45 floating pontoon 45 Limeburners 45 Sable Gully 45 stationary frontal boundary 45 Queen Quay 45 Fairview Container Terminal 45 Kuiseb River 45 Shannon Estuary 45 Cotentin 45 Bloor Danforth subway 45 Pontcysyllte Aqueduct 45 Kennebecasis River 44 Ontario Lacus 44 Cape Tormentine 44 pier jutting 44 Twelve Quays 44 Lake Couchiching 44 Whitney Lackenbauer 44 paddlewheeler 44 Forth Estuary 44 Canal du Midi 44 Lake Mälaren 44 Northumberland Strait 44 Wascana Creek 44 Qiongzhou Straits 44 Morne Trois Pitons 44 Volga Baltic 44 Gaillard Cut 44 Hokianga Harbour 44 Loch Linnhe 44 Soai Rap 44 Freshwater Bayou 44 sandy spit 44 Doubtful Sound 44 saltwater inlet 44 Hylebos Creek 44 subantarctic 44 inland waterway 44 Houma Navigation Canal 44 Amery Ice Shelf 44 Lower Lough Erne 44 Lubec Maine 43 Cape Spear 43 icebergs drifting 43 tidal salt marsh 43 Neebish 43 Kouchibouguac 43 Point Ellice 43 Kiel Canal 43 Barataria Basin 43 tidal estuary 43 Tuskar Rock 43 Lake Manapouri 43 Tettegouche State 43 La Parguera 43 Seaway Terminal 43 Honker Cove 43 Wrangell Narrows 43 ms Maasdam 43 Nares Strait 43 HMS Investigator 43 Glenmore Tr 43 Gulf Outlet MRGO 43 Loch Sunart 43 Saguenay Fjord 43 Wanapitei 43 Yamaska River 43 Pointe du Chêne 43 Inland Waterway 43 Lake Winnipegosis 43 Bathurst Inlet 43 Inaugural Voyage 43 Westerschelde 43 Restigouche River 43 rocky headland 43 Hound Chute 43 MV Coho 43 Beauharnois 43 Cruise Ship Terminal 43 seagoing ships 43 Mesoamerican Reef 43 strait separating 43 Gota Canal 42 Loch Lochy 42 Paddling Trail 42 Hatea River 42 Cote Sainte Catherine 42 Passamaquoddy Bay 42 Anvers Island 42 Barataria basin 42 Harbour Passage 42 navigable rivers 42 Kaministiquia River 42 Devonport Wharf 42 Dover Boulogne 42 Quoddy Head 42 Escuminac 42 tidal inlets 42 Orakei Wharf 42 Yaque del Norte 42 Crinan 42 roiling shark infested 42 Cape Jervis 42 icefield 42 Nunavut Territory coal 42 Icebreaking 42 Loch Torridon 42 Klinaklini River 42 River Itchen 42 Lake Ozette 42 Grand Etang 42 saltwater estuary 42 Marsamxett 42 Manitou Passage 42 Venice lagoon 42 Tracy Arm fjord 42 Calcasieu Lake 42 Manukau Harbour 42 Xe Bang Fai 42 Joggins Fossil Cliffs 42 Coast Guard icebreakers 42 Binational Forum 42 Changcheng Station 42 Spadina subway 42 Lake Nyasa 42 Champlain Canal 42 snowsquall warning 42 Jacques Cartier 42 Shannon Erne Waterway 42 Jacques Cartier Bridge 42 Stranded whales 42 Svalbard archipelago 42 waterway 42 Munuscong 42 Martindale Pond 42 salmon canneries 42 Lituya 41 Nottawasaga River 41 Hellas Planitia 41 Stonecutters Bridge 41 fabled Northwest Passage 41 snowsquall 41 landmark Hoan Kiem 41 Alboran 41 Samuel Cunard 41 Flatwater Centre 41 Menai Strait 41 sea lochs 41 Kenduskeag Stream 41 Bog Walk gorge 41 skateway 41 Ferry Slip 41 Sept Îles 41 Akademik Ioffe 41 Whitepark Road 41 West Quoddy Head 41 navigable waterways 41 Point Pelee 41 Kejimkujik National 41 spreader canal 41 Belfast Lough 41 icebreaker CCGS 41 explorer Jacques Cartier 41 easternmost tip 41 Sampit River 41 Outer Harbor 41 Halil Rud 41 Tuggerah Lake 41 Scoudouc 41 Houma Navigation 41 Bois Blanc Island 41 estuarine waters 41 Ganaraska River 41 Hood Canal bridge 41 Weddell Sea 41 Maribyrnong River 41 Graveline Bayou 41 Chaobai River 41 Kayaker rescued 41 Navigable 41 Kvichak River 41 Windward Passage 41 intracoastal waterways 41 Hardanger Fjord 41 Cswy 41 Gros Cacouna 41 destroyer HMCS Athabaskan 41 icebreaker Kapitan Khlebnikov 41 Matanzas Inlet 41 Tred Avon River 41 Great Barrier reef 41 Brazil juts farthest 41 Winnipeg floodway 41 Rideau Canal 41 Humber Arm 41 Humpback whale 41 Malpeque Bay 41 Azov Kerch 41 Wusong 41 Bayou Manchac 41 birchbark canoe 41 Fehmarn Belt 41 Roseway Basin 41 Skyway Fishing Pier 41 Prawle Point 41 Conestogo 41 Scheldt 41 Mooring Basin 41 Inner Harbour 41 Maligne Lake 41 abyssal plain 41 Acergy Polaris 41 Fuhrmann Boulevard 41 Great Lakes freighters 41 Charlestown Breachway 41 Crozet Islands 41 sandy cove 41 Cape Otway 41 Jacob Verhoef 41 recreational cod fishery 41 Alaska Inside Passage 41 Agawa Canyon 41 Poquonock Ave 41 Kelani River 40 grandest ocean liner 40 Northern EverStart 40 Nauset Marsh 40 Fermor Avenue 40 Hanlon Expressway 40 Greenland glacier 40 Tulsequah Chief mine 40 Coast Guard icebreaker 40 Boaters beware 40 self unloader 40 Charcot Island 40 Duffins Creek 40 Gatun Lake 40 Nantucket Clipper 40 Swantown Marina 40 Vilcanota river 40 coral fringed 40 Istanbul Bosphorus 40 ArcticNet 40 HMCS Ville de 40 Gorge Waterway 40 Belleair Causeway 40 McKays Crossing 40 subglacial lake 40 transboundary waters 40 Aquabus 40 taxies zipped abundantly 40 Lake Nipissing 40 Clipper Adventurer 40 Saimaa 40 Skagerrak 40 Whatipu 40 Maligne 40 Foss Waterway 40 Mainstem 40 tidal mudflats 40 Point Abino 40 Seaway 40 Khyber Pass Rd 40 Great Lakes 40 Dakatia 40 Mille Iles 40 Mattagami River 40 Untreated sewage 40 Gunningsville Bridge 40 PROSSER LAKE 40 Wingra Creek 40 Stonington Harbor 40 upbound 40 promontory overlooking 40 River Teign 40 subpolar 40 Danube Rhine 40 Bog Walk Gorge 40 subarctic 40 Fareastern Shipping Co. 40 Honoré Mercier Bridge 40 Queen Charlottes 40 Montmorency Falls 40 inlands 40 Copalis River 40 Eu Tong Sen 40 Slea Head 40 Thea Foss Waterway 40 Tagus River 40 Potters Cay 40 Lift Lock 40 sub glacial lakes 40 Fort Massac 40 Vanterm 40 Skeena River 40 Albemarle Pamlico 40 penguin rookery 40 Aerial Lift Bridge 40 Sheepscot River 40 research vessel Polarstern 40 tidal basin 40 fringing reef 40 headland overlooking 40 Andrew Bogora 40 Peggys Cove 40 haulout 40 Egret Boulevard 40 Ninglick 40 secluded bays 40 brooks streams 40 Magaguadavic 40 Croatia Dalmatian 40 scenic bluffs 40 Dardanelles Straits 40 Rondout Lighthouse 40 Nanticoke Generating Station 40 Mooloolah River 40 coastal lowlands 40 Cobscook 40 Tchefuncte River 40 Mille Îles River 40 river Elbe 39 FortisOntario 39 Takitimu Drive 39 Windblown snow 39 Stikine River 39 downtown Charlotte Amalie 39 Mistaken Point 39 Sea lampreys 39 promontory jutting 39 Barwon River 39 Cockle Cove 39 Taku Inlet 39 Carlingford Lough 39 Cape Poge 39 Tallebudgera Creek 39 MV Coho ferry 39 Sermilik Fjord 39 stormwater outfall 39 Bouregreg 39 British frigate Guerriere 39 brackish lagoon 39 Manitou Islands 39 Goguac 39 HMCS Haida 39 Christophe Colomb 39 Cabot Strait 39 Mamre Road 39 Rockcliffe Parkway 39 Melting Arctic 39 Tusket 39 freshwater wetland 39 Blind Pass 39 Siuslaw River 39 Faver Dykes 39 Minke Whale 39 Cataraqui River 39 lush tropical rainforest 39 Qaanaaq 39 Steensby Inlet 39 Soo Locks 39 Transsib 39 Fisherman drowns 39 Novaya Zemlya 39 Hither Creek 39 Yangshan Deep 39 graving dock 39 Oregon Wallowa Mountains 39 hypoxic zone 39 Ballintoy 39 oceanfront promenade 39 Annisquam River 39 MEADOWS RESERVOIR 39 berm separates 39 Barge Canal 39 Rhine Danube 39 Arctic archipelago 39 narrow isthmus 39 Bradys Run Lake 39 Twin Ports harbor 39 Sorlie Bridge 39 Aotea Quay 39 Huddersfield Narrow 39 mighty Mekong 39 Calumet Sag Channel 39 Kayakers paddle 39 soft drinks juices teas 39 predawn confrontation 39 inland waters 39 Kauai Na Pali 39 Conimicut Point 39 HMCS Corner Brook 39 Johnstone Strait 39 Bonnet Carre 39 navigable waterway 39 Tahquamenon River 39 Izembek 39 Craigflower 39 swollen Trempealeau 39 dam removals 39 Northwest Passage 39 Iroquois Confederacy oversees 39 spokeswoman Sophie Hazelhurst 39 Disraeli Freeway 39 Presumpscot 39 crewless 39 SLSMC 39 Meghna rivers 39 Axel Heiberg Island 39 Northumberland Ferries 39 Boundary Waters Treaty 39 ferry dock 39 Nahanni River 39 HMCS Algonquin 39 Duyfken 39 Disko Bay 39 Assiniboine Rivers 39 Northwestern Motorway 39 Gheringhap 39 Cheoah River 39 Steamships 39 outer harbor 39 Golfo Dulce 39 Bab el Mandab 39 Antarctica Amundsen 39 Foulweather Bluff 39 Dredged 39 Tar Pamlico 39 piers docks 39 Causeway 39 Annacis Island 39 Caledonian Canal 39 Punta Sur 39 brackish marshes 39 Fednav 39 Dugua 39 oceangoing freighters 39 Twin Spans 39 Bayou Plaquemine 39 NWHI 39 Bosporus Strait 39 Chief Wawatam 39 Quillayute River 39 calving glaciers 39 Parkhill Rd 39 Puerto Chiapas 39 Des Groseilliers 39 Ice floes 39 emerald shiner 39 Sandalwood Parkway 39 Kresna Gorge 39 Scuba divers donned flippers 39 Sucia Island 39 steep hillside overlooking 39 Des Voeux Road 39 Newmarket Viaduct 39 chart datum 39 Cayuga Seneca Canal 38 Deerfoot Tr 38 Neebish Island 38 Île aux 38 Unimak Pass 38 muddy slop dredged 38 beech forests 38 Columbia Icefield 38 NORDREG 38 Loch Katrine 38 icebreaker Amundsen 38 Whale Sanctuary 38 CCGS Amundsen 38 Chagres River 38 ms Rotterdam 38 dune walkover 38 Bois Brule 38 Kangerdlugssuaq 38 Andreas Muenchow 38 Swiftcurrent Lake 38 SCOTT MORGAN Auckland 38 Cambie Bridge 38 spiny waterfleas 38 Interisland ferry 38 Bighead carp 38 Duluth Aerial Lift 38 Trafalgar Rd 38 tidal estuaries 38 CTMA Vacancier 38 Lake Superior 38 Swannery 38 Landguard 38 Exe estuary 38 Lifesaving Museum 38 Mer Bleue 38 Coochiemudlo Island 38 icefields 38 Haulover Canal 38 saltwater marshes 38 River Tawe 38 marshy swamp 38 Cabot Trail 38 Wascana Lake 38 Yahara River 38 River Derwent 38 Presqu'ile 38 sandstone buttes 38 Fremantle Ports 38 Outer Harbour 38 Southwestern Motorway 38 Tarim River 38 Lophelia 38 Décarie Blvd 38 limestone karsts 38 Iceberg Alley 38 tideflats 38 navigable inland waterways 38 Dakhla Oasis 38 icebreaker Polar Sea 38 Tatar Strait 38 Fin Whale 38 Galloping Goose trail 38 Aniva Bay 38 Kapitan Khlebnikov 38 estuary 38 Wuskwatim dam 38 Nissequogue River 38 fiords 38 Hawksbury 38 rugged coastline 38 Bahia Grande 38 Grain Terminal 38 Helheim Glacier 38 Lough Foyle 38 Sir Wilfrid Laurier 38 Waterspout 38 Fort Gratiot Lighthouse 38 malarial swamp 38 Killary Harbour 38 Bonnechere River 38 Assawoman 38 Gwaii Haanas 38 Soai Rap River 38 Antarctica EPICA 38 Molucca 38 Tall Ship Celebration 38 Atlantic Gyre 38 Kolob Terrace Road 38 Rathlin Island 38 Inner Harbor Navigation 38 Jewfish Creek Bridge 38 alluvial plain 38 boatlifts 38 swollen Marikina 38 jagged coastline 38 polynya 38 Round Goby 38 Iguazu falls 38 Greenland semiautonomous Danish 38 Lake Tetonka 38 Muskeget 38 Mississippi River 38 Belmore Basin 38 sockeye fishery 38 Tuktoyaktuk Northwest Territories 38 Ras Isa 38 Burnt Bridge 38 Moosehorn 38 Waiwhakaiho River 38 Dockton 38 Tybrisa Street 38 forest meadows shrub 38 Gippsland Lakes 38 Larsen Ice Shelf 38 Mermentau River 38 Pontoon Bridge 38 Grasse River 38 Jutland peninsula 38 Isle aux Morts 38 Thu Bon 38 Pilchuck River 38 Fram Strait 38 Gatun Locks 38 unspoilt coastline 38 Langstone Harbour 38 mightiest rivers 38 border crossings hydroelectric dams 38 Haro Strait 38 Chignecto 38 Hydroelectric dams 38 Kopu Bridge 38 Fisgard 38 warship Cheonan exploded 38 Nashwaak 38 RV Polarstern 38 Douro River 38 Erieau 38 meter Giant Oarfish 38 Boblo 38 Marquesas islands 38 Semiahmoo Spit 38 colonial waterbirds 38 Fireweed Lane 38 Oread Avenue 38 Dom Mee 38 Great Slave Lake 38 tugboat towboat 38 Great Lakes Seaway 38 Sheet Harbour 38 Doomsday Seed Vault 38 mediaeval castle 38 Barren Fork 38 Memphremagog 38 Lake Huron 38 Chaudière Falls 38 watercourse 38 bays estuaries 38 Sognefjord 38 Pukaskwa National 38 Intense thunderstorms 38 LAKE YUCATAN 38 escarpment overlooking 38 coastal marshlands 38 freshwater aquifer 38 Sengekontacket Pond 38 Departure Bay 38 Meduxnekeag River 38 Bluenose II 37 Struve Slough 37 Waimakariri Gorge 37 intertidal 37 Jakobshavn glacier 37 Fiord 37 Gorge waterway 37 Desolation Sound 37 Sava rivers 37 Tsing Ma Bridge 37 Springvale Rd 37 Cap Sante 37 River Nore 37 Wassaw 37 Marmara seas 37 Typhoon Mirinae weakened 37 Ticonderoga Ferry 37 Ausable River 37 Heavy rainfalls 37 Tongkou flowed placidly 37 Medomak River 37 Coastweeks 37 LES WATKINS North 37 Antarctic continent 37 discharging ballast 37 polar explorer Roald Amundsen 37 Lakefront Promenade 37 cypress swamp 37 Swimmer drowns 37 Hecate Strait 37 Wickham Cay 37 portlands 37 Idaho Lake Pend 37 Bai Chay 37 Yan'an Elevated Road 37 Kabetogama Lake 37 Pootatuck River 37 Raquette River 37 creosote pilings 37 Tatoosh Island 37 Bosporus strait 37 Oslo Fjord 37 overflowing menacingly 37 Arvand Rud 37 Edgartown Harbor 37 eastern Dakotas 37 Lendal Bridge 37 Aucilla River 37 nontidal 37 Dungeness River 37 Nashwaak River 37 austral summer 37 Tatshenshini 37 Queets River 37 Rossaveal 37 Esmonde Rd 37 Dismal Swamp Canal 37 Namekagon 37 Lake Nagawicka 37 Bascule Bridge 37 landward side 37 Orkneys 37 Behm Canal 37 Trudy Wohlleben 37 cyanobacterial blooms 37 Lagoon Pond 37 scrub shrub 37 Eramosa Road 37 barge tows 37 round gobies 37 transpolar 37 birder paradise 37 Musandam Peninsula 37 Travelift 37 Renous 37 Grande Mariner 37 Voyageurs 37 sternwheelers 37 trailered boats 37 rocky headlands 37 Jacob Riis Park 37 Coast Guard icebreaker Amundsen 37 fiord 37 Assawoman Bay 37 Monsoonal moisture 37 Kotzebue Sound 37 Tebrau Straits 37 Alum Creek Reservoir 37 navigable waters 37 waterbus 37 Calcasieu Ship Channel 37 Caisse populaire 37 Langebaan Lagoon 37 Totten Inlet 37 Foveaux 37 ice floes 37 Amherstburg Ontario 37 Llangollen Canal 37 Interstate #W crumpled 37 Sinepuxent Bay 37 Fairway Buoy 37 Chilean Fjords 37 Bayport Container 37 Batchawana 37 Admiralty Inlet 37 piping plover nesting 37 sandy shorelines 37 Renard Isle 37 United Empire Loyalists 37 Phyllis Cormack 37 lowlying 37 Petitcodiac River 37 Sperm whale 37 Unimak Island 37 Perito Moreno 37 Gastineau Channel 37 Perevoznaya 37 Pencarrow 37 Alviso Slough 37 Nicomekl 37 Svalbard Islands 37 Sweetgrass Mont 37 Lough Conn 37 Svalbard Archipelago 37 Namao 37 Ho Hoan Kiem 37 salties 37 Canning Dock 37 Dunedin Causeway 37 Lake Pontchartrain Causeway 37 Kawkawlin River 37 Donnington Bridge 37 Kvichak 37 brown trout spawn 37 Cape Solander 37 Eau Gallie Causeway 37 Bayou Segnette 37 Brigantine Boulevard 37 riverside walkway 37 Trent Severn Waterway 37 Markeaton 37 Nippersink Creek 37 Macdonald Cartier Bridge 37 Aleutian Basin 37 Mitchell A. Derenzo 37 Missisquoi Bay 37 Lacolle 37 Burnstown 37 saltwater marsh 37 increased storminess 37 basalt cliffs 37 #th meridian 37 USS Albacore 37 Disenchantment Bay 37 Bransfield Strait 37 freshwater springs 37 swans gliding 37 Mertz Glacier 37 vessels transiting 37 Axel Heiberg 37 Warringah Freeway 37 River Spey 37 Tongass Narrows 37 Nimrod expedition 37 Dosewallips 37 Schomburgk 37 Festival du Voyageur 37 DuSable Harbor 37 glaciers retreated 37 bascule bridge 37 Ionian seas 37 Papenoo 37 Coast Guard icebreaker Healy 37 glacially carved 37 Bayou Bartholomew 37 St. Goarshausen 37 Clipper Yacht 37 dams spillways 37 icebreaking ships 37 Bayou DeSiard 37 navigable 37 Yeongsan 37 transient dockage 37 muddy backwater 37 Teshekpuk 37 Skan Bay 37 Coon Rapids Dam 37 Coxwell Avenue 37 Isla Espiritu Santo 37 Chocolay River 37 Kilchis 37 berthing facilities 37 Bosporus Straits 37 SeaBus terminal 37 eDNA testing 37 Chenier Plain 37 Hood Canal Bridge 37 wharf 36 Passenger Ship 36 Pamban bridge 36 Belwood Lake 36 Polarstern 36 Sebasticook River 36 Tennessee Tombigbee 36 Minjiang River 36 Barataria Terrebonne National 36 ravenous carp 36 Searchers scour 36 untreated ballast 36 oceans coasts 36 Lillooet River 36 Tauranga Harbour 36 terminal moraine 36 Spurn Point 36 UNESCO Biosphere Reserve 36 Zebra mussel 36 Kennebecasis 36 nonindigenous species 36 Bayou Bienvenue 36 Auyuittuq National 36 floodable 36 eroding shorelines 36 Bloor Danforth line 36 Atlantic Ocean 36 Oceanus Procellarum 36 Lake Mainit 36 Tyrrhenian Sea 36 Gowanus Bay 36 Kinnickinnic River 36 sacred Ganges 36 canal 36 Louisiana southeastern bootheel 36 Outer Cove 36 Hartshorn Marina 36 dredgings 36 treeless tundra 36 EC Row 36 freshwater ponds 36 Lake Pepin 36 fluvial 36 river Liffey 36 Lake Alaotra 36 freshwater wetlands 36 Fish Refuge 36 DONNER LAKE 36 aspen parkland 36 Mediterrean 36 Cockroach Bay 36 Bohicket 36 herons kingfishers 36 Ao Por 36 seafloors 36 causeway 36 Skookumchuck 36 upland meadows 36 Bothnia 36 Atlantic cod fishery 36 Boldt Castle 36 Pavonia Newport 36 Sombrio Beach 36 McClusky Canal 36 Fishermen Wharf 36 Conesus Lake 36 Winnipesaukee River 36 tidally influenced 36 Privateer Lynx 36 Longyearbyen Norway 36 glaciers receded 36 Claymont Del. spilling 36 penninsula 36 Napier Taupo Road 36 Montlake Boulevard 36 Brahmaputra rivers 36 Foxe Basin 36 Fundy 36 Sainty Point 36 riverways 36 DESERONTO 36 Taupo Quay 36 Richibucto 36 Erie Canal 36 Léry 36 Rideau Canal Skateway 36 harp seal hunt 36 Louisiana coastal marshes 36 Ragged Point 36 Port Zante 36 Nigeen lake 36 schooner Bowdoin 36 Leh Manali road 36 Bayhead 36 Hedon Road 36 waterway separating 36 tanker Volganeft 36 intercoastal waterway 36 Mersey Ferries 36 groomed snowmobile trails 36 ROLLINS LAKE 36 Whangarei Harbour 36 Missisquoi River 36 Small Craft Harbours 36 Ceitus 36 Bahia Honda 36 Cuckmere Haven 36 headrace 36 Hammonds Plains Road 36 Minnehaha Falls 36 Bedeque 36 Gualala River 36 Allegheny Monongahela 36 Didemnum 36 Hillarys Boat Harbour 36 tidal marsh 36 Cape Alava 36 Hiva Oa 36 Nottawasaga 36 Shun Tak Centre 36 Princes Dock 36 JFK Causeway 36 hydrography 36 Waters Pollution Prevention 36 rivers estuaries 36 Pensinsula 36 ms Amsterdam 36 Winnicut River 36 Peril Strait 36 Tracy Arm Fjord 36 sealanes 36 cod fisheries 36 Nihoa Island 36 saltmarshes