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  3. Thai cave rescue: Former Navy diver dies while exiting flooded tunnels

    Thai cave rescue: Former Navy diver dies while exiting flooded tunnels

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  4. Camera hidden at beaver lodge records incredible unknown footage

    Camera hidden at beaver lodge records incredible unknown footage

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  6. Explore an underwater environment full

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  7. Secret Atomic Bomb Test Succesfully

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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. Swimming Through an Underwater Cave

    Swimming Through an Underwater Cave

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  11. 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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  13. Curious Cat Explores Underwater Tunnel Aquarium

    Curious Cat Explores Underwater Tunnel Aquarium

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  14. Palm Jumeirah Tunnel underwater

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

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  16. "Ocean Wonders: A Journey Through the Deep"

    "Ocean Wonders: A Journey Through the Deep"

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  17. Lady Free-Dives Into Underwater Tunnel The Lady Almost Dived A 100ft Underwater Tunnel I One Breath!

    Lady Free-Dives Into Underwater Tunnel The Lady Almost Dived A 100ft Underwater Tunnel I One Breath!

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  19. 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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  20. Underwater tunnel railways

    Underwater tunnel railways

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  21. Lady Free-Dives Into Underwater Tunnel

    Lady Free-Dives Into Underwater Tunnel

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  22. Underwater train passengers 'panic' as they're trapped in tunnel for hours in 'terrifying' ordeal

    Underwater train passengers 'panic' as they're trapped in tunnel for hours in 'terrifying' ordeal

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  23. Cuba / остров Кайо Бланко / Куба / океан #natureshortsvideo

    Cuba / остров Кайо Бланко / Куба / океан #natureshortsvideo

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

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

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