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Author Topic: Underwater Vortex - Scary as Hell!  (Read 5984 times)

jabberjaw

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Re: Underwater Vortex - Scary as Hell!
« Reply #10 on: 14 May 14, 10:26 »
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  • Looks like its blue water diving no reef or coral for shelter, sway sway kena one vortex like this, jialat liao, does the vortex stay at one place or will it chase the diver? I dunno never kena before, looks pretty sick...makes me wish that the diver carried a long big stick to pull the poor guy out...

    awkwardmiffy

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    Re: Underwater Vortex - Scary as Hell!
    « Reply #11 on: 14 May 14, 11:04 »
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  • #1. What Labour Day incident?


    In precise, a diver lost her life while doing her AOW at Tioman. The deceased was OW certified for less than a year (if i rmb correctly) before doing her AOW.


    #2. Can you postpone your AOW? It sounds like you might not be in the right state of mind to dive. If you're not comfortable with it, it's better to postpone it rather than go in panicking. Anxiety is not a good state to dive in, it might cause all sorts of problems underwater -- confusion, high air consumption, difficulty with buoyancy, shooting to the surface. Get more shallow dives first.


    i do agree that i'm not in the right state of mind to do the AOW. and honestly i dont want to go through with it. but i'm doing it with a partner so if i dont go ahead with it, he cant either. so yes, its peer pressure. still trying to convince him to not do it coz he has a lesser regard for safety. he just assumes that if everyone else can do it then we should be fine. so oblivious to the dangers. the next time i dive will definitely not be with such a person.

    the only solace i've got is that my instructor is very reliable and that we're doing a 1 : 2 ratio with a DM to help out.

    awkwardmiffy

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    Re: Underwater Vortex - Scary as Hell!
    « Reply #12 on: 14 May 14, 11:08 »
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  • Edit: In another topic you said your AOW will be on 10 June. Perhaps you can rent some gear and go practice diving in a pool before that?


    yeah, leaving for Bali on the 10th, first dive for AOW is on the 11th. yeah i have my full gear with me so i dont have to worry about renting any equipment. and yes we've scheduled for a pool session to brush up on our neutral buoyancy and underwater skills and get familiarised with each other's BC system. we've also done our refresher last month.

    but, things like being caught in a downcurrent, isnt something you can sufficiently prepare for in the pool...  :-\

    schushoes

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    Re: Underwater Vortex - Scary as Hell!
    « Reply #13 on: 14 May 14, 12:24 »
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  • I think...If you feel that you are not prepared, don't feel compelled by your friend to do your AOW...
    You can always change the trip to a leisure dive trip instead of a AOW course...

    But if you still insist on the AOW course, you could always drop an email to your instructor and tell him/her that you and your friend are not so confident and would want to request for easier sites...

    No instructor in the right mind would also take an inexperienced AOW student to high current sites like Nusa Penida/Crystal Bay or even Lembongan... So down/up currents or vortexes or whirlpools will definitely not part of your package... Maybe just some light currents to get your legs working...

    They will probably take you to an easy site to do your UW Nav, Night Dives or other skill dives...
    There will be just one deep dive which could be at Tulamben Wreck?

    Just ask and they would definitely do their best to fulfil your request cause you guys are the paying customers after all.  ;)
    Live, Love & Dive...

    npallasi

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    Re: Underwater Vortex - Scary as Hell!
    « Reply #14 on: 14 May 14, 12:33 »
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  • Sounds like you're going well-prepared. :)

    Natural physical phenomenon like rip currents, upcurrents (upwellings), downcurrents (downwellings), and whirlpools form only under certain conditions, like the presence of certain shore features, near a reef wall, where cold currents meet warm currents, etc. Asking about the dive sites in advance (and negotiating where to dive) might help allay anxiety.

    There is information online on how to deal with these phenomenon. It might come in handy. The main thing is not to panic.
    1) http://www.ehow.com/how_5831568_survive-whirlpool.html
    2) http://www.scubaboard.com/forums/advanced-scuba-discussions/395497-dealing-down-currents.html
    3) http://www.ripcurrents.noaa.gov/overview.shtml

    p.s. also apologies for hijacking the topic.

    edit:
    does the vortex stay at one place or will it chase the diver? I dunno never kena before, looks pretty sick...makes me wish that the diver carried a long big stick to pull the poor guy out...

    The whirlpool won't chase the divers. They posted that video to teach other divers what it looks like so other divers can avoid it. Their video comment was that they swam into it. So the lesson is: recognise and avoid it.

    The other (videoing) diver was not anchored to anything, and water is usually stronger than humans, so if the other diver used a pole and the vortexed diver grabbed it... 2 divers will be going round, one in the center and the other at the end. Like this:


    Imagine vortexed diver is the little seated boy in the center and other diver on a pole is the other children at the sides. Imagine it going much faster. Now imagine that the vortexed diver lets go... :P

    I imagine the safest thing to do is not to save the vortexed diver.
    « Last Edit: 14 May 14, 13:05 by npallasi »

    siaokao

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    Re: Underwater Vortex - Scary as Hell!
    « Reply #15 on: 14 May 14, 12:54 »
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  • i thought i aleady have more than enough on my mind to worry about for my AOW next month and now ive gotta add this to my list... :-\

    went online and the most recommended course of action was:

    - exit the vortex (mainly understood as downcurrent) by finning/kicking/swimming your way out at a 90 degrees angle from the direction of flow
    - inflate BCD to get positive buyancy and do the above while getting ready to dump air once out of the downcurrent to avoid a quick ascent

    apparently Bali is known for its sick downcurrents especially at Nusa Penida (pedina?) and Crystal Bay
      :(

    honestly, i am terrified... truly... have been feeling this way eversince i read about the labour day incident. its not that i have no faith in my instructor... im just scared. im very scared. deep dive 40m? night dive? my BCD is approx 5yo and hasnt gone that deep... my regulator hasnt been in sea... no dive torch, no dive com...

    omg... sigh...

    freaking out every night coz im trying to get myself mentally prepared by reading up but i end up being more scared...
    Understanding the dangers if taken positively can mean a more prepared diver. One should understand the dangers but if it scares the s**t out of you, den you may have taken it abit too hard.

    AWO is suppose to prepare you for these those deeper and night dives. It is perfectly understandable that as an OW diver feels this way coz you are yet to be equipped with this knowledge.

    Having said the above and based on my limited experience, if you are yet to be comfortable OW diver, you may want to delay you AOW course. It is likely you are not comfortable underwater which may lead to panic suituation in a more 'challenging' dive. Imho, most rec dives, panic is the number killer. Same suituation can have totally different result, depending on how the diver manages the suituation.

    So yea, knowing that scuba diving have it's dangers should be a positive motivation for one to be more prepared. But if it scares u, perhaps diving is not your cup of tea, if so, dun force yourself.
    So they call it a 'FACT' coz someone made some statements on a 'FACT SHEET'? hummm...

    woobc

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    Re: Underwater Vortex - Scary as Hell!
    « Reply #16 on: 14 May 14, 13:10 »
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  • think you should be fine. dont go to penida/lembogan/tepekong/biaha sites if you dont feel up to it.

    if you do go there, you shld be prepared for potentially rough boat ride, colder water, choppy surface interval on the boat, unfamiliar gear (eg 5mm, hood, extra weight) ... IMO, higher chance of these happening then vortex/strong down currents.

    first day of AOW, deep dive & nite dive wld probably be shore dives at Tulamben or PadangBai

    awkwardmiffy

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    Re: Underwater Vortex - Scary as Hell!
    « Reply #17 on: 14 May 14, 13:22 »
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  • So yea, knowing that scuba diving have it's dangers should be a positive motivation for one to be more prepared. But if it scares u, perhaps diving is not your cup of tea, if so, dun force yourself.


    tbh, it isnt the dive per se that scares me. but the fact that i'm inexperienced and am diving with a happy go lucky buddy. if i was a more experienced diver, i believe i wouldnt feel as intimidated.


    You can always change the trip to a leisure dive trip instead of a AOW course...

    But if you still insist on the AOW course, you could always drop an email to your instructor and tell him/her that you and your friend are not so confident and would want to request for easier sites...

    No instructor in the right mind would also take an inexperienced AOW student to high current sites like Nusa Penida/Crystal Bay or even Lembongan... So down/up currents or vortexes or whirlpools will definitely not part of your package... Maybe just some light currents to get your legs working...


    i've informed the instructor about my situation, and he's so nice to give me the flexibility to either go with the leisure or AOW. so he isnt forcing me to complete the AOW at all. if we were to do the AOW, we'll be doing dives at tulamben and at nusa penida. the latter site is for the drift driving component.

    been coming in to the forum to pick out as much as i can about dive safety. i'm thankful for the responsive community here.

    marcob

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    Re: Underwater Vortex - Scary as Hell!
    « Reply #18 on: 14 May 14, 14:42 »
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  • I think you should push back your AOW and just do leisure for this trip.
    Diving should be stress free.. too much stress and you will not enjoy it.
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    Albion

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    Re: Underwater Vortex - Scary as Hell!
    « Reply #19 on: 16 May 14, 22:33 »
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  • Doesn't matter AOW course or leisure diving, novice diver shouldn't be diving the Penida dive sites
    Penal Code 499, Entitles to be stupid but not to be called it