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Portsmouth,England-4th November 2015:HMS Alliance was launched 1945 and is Britain's only remaining World War II submarine.It is now in use as a tourist attraction in Gosport,Portsmouth,England
The photo focuses on a double barrel cannon located in Fort Copacabana. The Fort is a military base at the south end of the beach.The base is open to the public and contains the Museu Histórico do Exército (Army Historical Museum) and a coastal defense fort that is the actual Fort Copacabana.
Cuxhaven, Germany - October 25, 2021: Belgian Navy minehunter Primula leaving the port of Cuxhaven
Underwater oil pipelines on ocean floor.
Navigational bridge and control device on old abandoned ship.
Under a free diving in the bay of La Ciotat in the south of France
Diving in Jordan along the coastline south of Aqaba on a sunken C130 airplane wreck.
Whidbey Island, WA, USA - August 20, 2021: The Fort Casey Historical State Park
Chaff launcher is seen on the deck of a military ship sailing on the sea.
Army ship, background with copy space, full frame horizontal composition
Ship wreck in the Red Sea.
The NOAA research ship Okeanos Explorer docked at a Key West Florida pier, May 2019. Research vessel with blue skies and cumulus clouds in background.
Image has been captured by Sony Cyber-shot DSC-WX1 compact camera in Aegean Sea, Bodrum, Turkey.
San Juan National Historic Site Paseo El Morro sign along the walkway under the imposing fortress wall of Old San Juan Puerto Rico
Navigational bridge on big cargo ship. Wheelhouse on vessel.
Yokosuka, Japan - May 25, 2023 : JS Uraga (MST-463) at the Japan Maritime Self-Defense Force's base in Yokosuka, Kanagawa Prefecture, Japan.
Yellow submersible under oil rig
Diving in Jordan along the coastline south of Aqaba on a sunken C130 airplane wreck.
cannon armament on a warship with a dark gray color
View of the MV Captain Keith Tibbetts shipwreck in Cayman Brac - Cayman Islands
Mobile, Alabama, USA - February 11, 2022: Austal USA shipyard and ships in Mobile, Alabama, USA. Austal USA is an American shipbuilder.
Two scuba divers exploring huge ship wreck on the sand sea bottom.
Sandefjord, Norway - May 25, 2022: The Vesteroya Fortress was a German coastal battery.An underground tunnel system, trenches, shelters and casemates were constructed here. Selective focus
Australian Navy ship in the port, background with copy space, full frame horizontal composition
Submarine Monument is a landmark and museum made out of a decommissioned submarine situated in Surabaya, Indonesia. Many students and children visit it for learning.
View of Blackpool tower undergoing repair work, UK.  People an be seen on the promenade
Picture shows some pipelines underwater.
15th June, 2022.  Frigate warship sails into in the harbour port of Cartagena in Spain
Inside underwater submarine
The giant red buoy marking the location of the National Cycle Network Route NCN 72
Free Images: "bestof:George Schwarz, an underwater archaeologist with the Naval History and Heritage Command (NHHC), prepares batteries that power magnetometer survey equipment in a"
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