• Welcome to ScubaBoard

  1. Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.

    Benefits of registering include

    • Ability to post and comment on topics and discussions.
    • A Free photo gallery to share your dive photos with the world.
    • You can make this box go away

    Joining is quick and easy. Login or Register now by clicking on the button

snorkel after diving - No fly time risk?

Discussion in 'Basic Scuba Discussions' started by Johnmpcny, Apr 19, 2011.

  1. Johnmpcny

    Johnmpcny Nassau Grouper

    # of Dives: 100 - 199
    Location: Oswego NY
    If I snorkel the off diving day before or even morning of my return flight after a week of diving does that add to my no fly time or risk? I do get down 20 to 30 + ft when I do this and was asked by one person since I equalize do I increase any risks when flying the next day or same day? It had never occurred to me.
  2. DBailey

    DBailey Instructor, Scuba

    # of Dives:
    Location: Wrigley Field, Chicago
    Are you breathing compressed air at depth?
  3. knowone

    knowone Regular of the Pub

    I think I heard from an uncle of a friend's cousin's wive's son, or just read
    that it depends on the size of your snorkel
  4. Bedros A

    Bedros A Nassau Grouper

    # of Dives: 200 - 499
    Location: Lebanon
    In my limited experience...I dont think it would be a problem if you're snorkeling.
    If you're not breathing compressed air, then your no fly time should not be affected.

    However, if during the previous day's dive, you surpassed the NDL times and were forced into making a DECO stop, then intensive snorkeling (or any tiring physical work) is not recommended directly after the dive.


  5. redacted

    redacted Guest

    Submersion will increase the PP of nitrogen in you body and effect the off-gassing process. It can even result in increasing the body's nitrogen loading. In an extreme example, Japanese pearl divers (free divers) have been known to get the bends.

    That said, I don't think I would worry much about a total bottom time of 5 to 10 minutes at 20 to 30 feet. But, you always have the option of just remaining on the surface and not taking any added risks.
    AbyssalPlains and knotical like this.
  6. Karibelle

    Karibelle IDC Staff Instructor

    I had to read this a couple of times to realize you said "total" and didn't mean all at once. I thought wow... that guy can really hold his breath.

    duh. :shocked2:
  7. Kenny13

    Kenny13 Nassau Grouper

    # of Dives: 0 - 24
    Location: Belle Chasse, LA
    I think you and I read that the same way lol. I was thinking the same thing.
  8. nomro

    nomro Nassau Grouper

    # of Dives: 50 - 99
    What I know , if the air is not compressed then dont worry about it . plus how many minutes did you spend below the surface ?
    What is important from my point of view (I'm not a doctor) is the no fly time on your dive computer that is based on actual diving .
  9. Downing

    Downing Loggerhead Turtle

    # of Dives: 200 - 499
    Location: Portland, Oregon
    On an episode of Planet Earth I watched an Indonesian (I think) free diver who can hold his breath for up to five minutes at 60 feet. Incredible.
  10. knotical

    knotical perpetual student Staff Member

    # of Dives: 1,000 - 2,499
    Location: Ka'u
    + 1 what awap said.

    The air in your lungs while free-diving is compressed, to the ambient pressure, so there is some increased risk of DCS. However, in the scenario described by the OP, the increase is likely extremely negligible.
    oldnotdead likes this.

Share This Page