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  1. Diver risks one-breath swim through deep underwater tunnel

    Diver risks one-breath swim through deep underwater tunnel

    81.6K
  2. GC Rainbow Diving – Cayman’s Most Colorful Underwater Spectacle!

    GC Rainbow Diving – Cayman’s Most Colorful Underwater Spectacle!

    2.69K
  3. 🐟 Secret Tunnel Adventure! 🏔️ #SecretTunnel #AquariumLife #FishJourney #aquarium #fish #reef #tang

    🐟 Secret Tunnel Adventure! 🏔️ #SecretTunnel #AquariumLife #FishJourney #aquarium #fish #reef #tang

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  4. Diver Squeezes Through Underwater Tunnel

    Diver Squeezes Through Underwater Tunnel

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  6. Floating underwater tunnels: Norway earmarks $25bn for floating submerged tunnel plan - TomoNews

    Floating underwater tunnels: Norway earmarks $25bn for floating submerged tunnel plan - TomoNews

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  7. Mysterious underwater tunnels at Bloody Bay Wall, Cayman Islands

    Mysterious underwater tunnels at Bloody Bay Wall, Cayman Islands

    851
  8. Hole in Rocks by the Sea Turns into Underwater Tunnel

    Hole in Rocks by the Sea Turns into Underwater Tunnel

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  9. Russian, Chinese Businessmen Considering Secret Underwater Tunnel Connecting to Crimea

    Russian, Chinese Businessmen Considering Secret Underwater Tunnel Connecting to Crimea

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  10. How the world’s largest underwater tunnel is being built | BBC News

    How the world’s largest underwater tunnel is being built | BBC News

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  11. Bangladesh set to open first under-river tunnel project built with Chinese funding and contractors

    Bangladesh set to open first under-river tunnel project built with Chinese funding and contractors

    27.7K
  12. Underwater Cave Diving - "Lost Student Tunnel" Jackson Blue Springs

    Underwater Cave Diving - "Lost Student Tunnel" Jackson Blue Springs

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  13. Palm Jumeirah Tunnel underwater

    Palm Jumeirah Tunnel underwater

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  14. 🚇 "The Amazing Channel Tunnel: Engineering Beneath the Waves" 🌊

    🚇 "The Amazing Channel Tunnel: Engineering Beneath the Waves" 🌊

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  15. Exploring Underwater Tunnels Gets Sketchy

    Exploring Underwater Tunnels Gets Sketchy

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  16. Hong Kong's $11BN Underwater Railway Explained

    Hong Kong's $11BN Underwater Railway Explained

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  17. A family of three walks hand in hand through an underwater tunnel at an aquarium

    A family of three walks hand in hand through an underwater tunnel at an aquarium

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  18. Underwater tunnel railways

    Underwater tunnel railways

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  20. Tunnel Fills With Smoke After Serious Accident

    Tunnel Fills With Smoke After Serious Accident

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  21. Curious Cat Explores Underwater Tunnel Aquarium

    Curious Cat Explores Underwater Tunnel Aquarium

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  22. Germany_s _10 Billion Underwater Tunnel to Denmark

    Germany_s _10 Billion Underwater Tunnel to Denmark

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  23. Swimming Through an Underwater Cave

    Swimming Through an Underwater Cave

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