Archive for ‘Other’

Christmas tree worms

By , 4 July, 2015, No Comment

Davy Jones’ Locker is located in the Gulf of Thailand on a paradise island named Koh Tao were here we are fortunate enough to be able to dive all year around in some of the most beautiful waters in the world.

Koh Tao offers scuba divers (beginners to advanced levels) the opportunity to experience diving with a huge variety of marine life as the Christmas tree worms.

Christmas tree worms (Spirobranchus giganteus ) are Christmas tree shaped tube-dwelling worms with twin spirals of plumes used for feeding and respiration. They have a tubular, segmented body lined with chaeta, small appendages that aid the worm’s mobility. Because it does not move outside its tube, this worm does not have any specialized appendages for movement or swimming. These worms are sedentary, meaning that once they find a place they like, they don’t move much.

They come in many colours including red, orange, yellow, blue and white and though they are small with an average 3.8 cm in span, they are easily spotted due to their shape, beauty and colour always makes an eye-catching display.

Christmas tree worms are polychaete ciliary feeders that feed using their radioles, the hair-like appendages or “feathers” that circle outward from the central spine, to catch phytoplankton floating by in the water. The food is then passed down a food groove by ciliary tracts — lines of tiny hair-like extensions on the surface of cells that generate water currents to move food or mucus. The food particles are sorted and larger particles are discarded. Sand grains are directed to storage sacs to be used later for tube building.

There are male and female Christmas tree worms. They reproduce by sending eggs and sperm into the water. The eggs are fertilized in the water then develop into larvae and become part of the zooplankton to be carried by the currents to then settle on coral heads and then burrow into the coral to form their burrows.

As you can see this is just one of the fascinating creatures that we encounter every day here at Davy Jones’ Locker. Feel free to pop in for a visit and we will be happy to share these unforgettable experiences underwater with you.

James

 

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No Need To Be Scared.. Your in Good Hands!

By , 27 June, 2015, No Comment

As a Scuba Dive Instructor there are many reasons I have heard why people are reluctant to get into diving. Most of these are however psychological that have no real bearing against statistics or how people with similar feelings felt after they have given it a try. Here Are some FGRWIDWTD (Frequentky Given Reasons Why I Don’t Want to Dive) and my responses, which hopefully should help allay the fears. At Davy Jones Locker, we cater to all needs to try and make your course feel safe and fun.

 

  1. I don’t think I’ll like it!

 

You don’t have to start paying out money to try diving. Here at Davy Jones Locker if you are feeling nervous or just want to give it a go we can offer you a FREE try dive in the swimming pool. An instructor will set up all your equipment, help you into it and just see if you like the feeling of breathing underwater. This will really help alleviate those initial fears.

 

  1. I don’t like fish

 

I’m not a huge fish eater myself, but they don’t touch you underwater. They may come close, but most of them are smaller than your hand. There are over 20,000 species worldwide in all shapes colours and sizes. The ones around Koh Tao are tropical reef fish, which means they tend to be smaller and more brightly colour, leading to some of the most spectacular visuals you will ever experience. Diving is a passive sport, so we are not there to touch the fish!

 

  1. What about sharks?

 

The chances of shark attacks whilst diving are next to nill. The amount of things you do on a day to day basis that are more dangerous than scuba diving is staggering. There has been one shark attack in Asia 1820 – 2012, which equates to 0.047% of all dives made. (http://www.flmnh.ufl.edu/fish/sharks/scuba/All2.htm)

The sharks that are seen around Koh Tao are Black Tip Reef Sharks which are a harmless and actually very beautiful to see, though are only seen at one or two dive sites. Please DO NOT let sharks put you off diving.

 

  1. I’m claustrophobic

 

Diving not not necessarily bring on feeling of claustrophobia. We have numerous ways in which we as instructors can help. You could try doing a PADI Discover Scuba Dive, which will give you a view into the underwater world to see if it is for you. We will stay close, in very small group sizes, and you can end the dive at any point if it isn.t for you (though I’m sure you’ll be hooked). If it is the though of getting to the surface that bothers you, then you’ll be pleased to know that all PADI recreation diving is ‘No Stop’ Diving, which means that at any point you can ascend directly to the surface without stopping.

 

So please come into the shop or email us directly if you have any further questions, and come diving with Davy Jones Locker!

by Chris

 

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Diving is fun!!! So come to DJL and try…you will love it ;)

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A Technical Divers Skills

By , 23 June, 2015, No Comment

Last month I talked about the steps you can take to become a Technical diver here at DJL. This month I want to delve into the skills you learn when you first sign up to the introductory tech course, “Intro to Tech”.

 

Intro to Tech allows you to grasp the basic knowledge and skills needed to pursue a journey into technical diving. You start by building up a deeper understanding of how the body is affected when breathing compressed air, weather you’ll be diving deeper, longer, or both. A more in depth look at why people would want to go deeper then leads us onto why tech divers need to carry extra tanks and a whole host of other equipment you might not see standard recreational divers using.

 

Once some theory has been covered, it’s time to get into the water! On land all the equipment will be shown to you and how it all goes together. It may be quite daunting at first with two tanks, long hoses and a strange looking BCD called a backplate and wing, but you will soon realise all of the equipment has a purpose and you carry nothing you wouldn’t need on the dive. Before jumping into the water you will be taught that you should always check what you’re about to breath. This is a very important safety step that you will need to grasp throughout your technical diving journey. An analyser is used to measure the content of oxygen which is then noted on the actual cylinder along with your name and the maximum depth that mix of gas can be used at.

 

Once you get into the water you soon realise that you need to work as a team with your buddy or buddies, it’s not all macho solo diving where you just go off on your own. Your team mates are there to assist monitor and act as your backup if in the rare occurrence that something may go wrong.

 

The skills you learn in the Intro to Tech course make up the foundations for the rest of your career as a tech diver. Skills such as; kicking styles, buoyancy, planning, emergency skills, teamwork and a number of others. It is important to master these skills so you can progress onto further courses where you will be carrying more tanks, more equipment and deeper depths; you need to learn to walk before you can run.

 

I hope you enjoyed this brief overview of the skills you will learn when taking a introductory tech course with us at Davy Jones, we have a number of fully qualified, passionate and knowledgeable tech instructors who would love to open your eyes to the exciting world of tech diving.

by Matt

 

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Multi Level Dive Planning

By , 28 April, 2015, No Comment

Have you ever gone diving and found yourself very tired at the end of the dive even though you got a good nights sleep? This may because you have been diving a “sawtooth” profile, going up and down producing small bubbles that whilst not decompression sickness can leave you to feel fatigued after a dive. We’ve all been guilty of getting excited, diving down to see fish at the end of a dive, or going up and down over a coral reef, but due to the repeated on gassing and off gassing we get this fatigued feeling. Drinking plenty of water will what else can you do improve your feeling at the end of the dive so you feel fresh and awake to chat with your buddy about it, as well as go on second and third dives?

 

When you first take your PADI Open Water course you learn about the RDP table, many of you may have seen something like this…

by Chris

 

toto

Learn how to use the RDP table as part of your Open Water Course giving you the ability to plan your dives.

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Le Sidemount vous y viendrez!

By , 28 March, 2015, No Comment

Le Sidemount c’est quoi???

Pour la plongée Tek ou loisir, pour la plongée spéléo ou sans plafond, pour les pros?

NON! Le sidemount est simplement une autre manière de plonger…

Imaginé à l’origine par les plongeurs spéléos, la configuration sidemount est devenue très populaire auprès d’un grand nombre de plongeur et on la voit de plus en plus en plongée loisir.

Le principe est simple: plus de bouteilles sur le dos et celles ci seront portées sur les côtés du corps.

Cette configuration offre de nombreux avantages:

  • possibilité de plonger avec une ou plusieurs bouteilles ce qui augmentera sensiblement votre autonomie et votre sécurité.
  • un meilleur hydrodynamisme et un encombrement réduit ce qui augmentera votre potentiel d’exploration et de pénétration en plongée souterraine ou sur épaves.
  • un meilleur confort pour le dos
  • matériel minimaliste et léger qui séduiront les voyageurs!!!!

 

Ici à Davy Jones Locker nous offrons différentes formations pour la plongée sidemount. En plongée loisir la formation PADI vous permettra de vous familiariser à la plongée “Sidemount” lors de vos plongées récréatives avec l’utilisation d’un ou deux cylindres. Les formations PADI TecRec ou TDI s’adresse plutôt aux plongeurs techniques ou à ceux voulant le devenir.

Pour plus d’informations sur nos cursus sidemount visitez notre site www.techdivingthailand.com

 

Alors envie d’oublier vos bouteilles, plonger avec une sensation de liberté totale?

rejoingnez nous vite…

by Robert

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