1. Underwater cave diving in Blue Hole Spring (Ichetucknee Springs, Florida)

    Underwater cave diving in Blue Hole Spring (Ichetucknee Springs, Florida)

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  2. Amazing underwater cave diving footage

    Amazing underwater cave diving footage

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  3. Diver narrowly escapes underwater cave dive

    Diver narrowly escapes underwater cave dive

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  4. POV footage captures intensity of underwater cave diving

    POV footage captures intensity of underwater cave diving

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  5. Fearless diver explores dangerous underwater cave

    Fearless diver explores dangerous underwater cave

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  6. Intimidating sharks block scuba divers' exit from underwater cave

    Intimidating sharks block scuba divers' exit from underwater cave

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  7. Divers conquer infamous double underwater cave

    Divers conquer infamous double underwater cave

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  8. Scuba diver encounters bird in canyon 50 feet underwater

    Scuba diver encounters bird in canyon 50 feet underwater

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  9. Fearless diver swims underneath cave in one breath

    Fearless diver swims underneath cave in one breath

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

    Diver risks one-breath swim through deep underwater tunnel

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  11. Octopus is a deadly and beautiful night predator

    Octopus is a deadly and beautiful night predator

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  12. This Swimming Hole In Texas Is A Real Challenge For Thrill-Seekers

    This Swimming Hole In Texas Is A Real Challenge For Thrill-Seekers

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  13. Penguins & sea lions play with thrilled swimmers at the equator

    Penguins & sea lions play with thrilled swimmers at the equator

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

    Mysterious underwater tunnels at Bloody Bay Wall, Cayman Islands

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  15. Scuba divers meet aquatic bird hunting thirty feet below the surface

    Scuba divers meet aquatic bird hunting thirty feet below the surface

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  16. Scuba divers join large school of sharks resting on the ocean floor

    Scuba divers join large school of sharks resting on the ocean floor

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