TEC EVOLUTION

Technical Diving and Closed Circuit Rebreather (CCR) Dive Centre

TecEvolution : Rebreathers and Technical Diving Specialists
22/23 Moo 4, Whitesands Trat 23170, Koh Chang, Thailand
Tel : +66 87 926 4973 , Cell : +66 87 926 4973

What is Tech ?

Tech, Tec, Tek, Technical Diving = Commercial ?
Technical diving brings people to thinking of the commercial side of diving. This is a wrong idea.
Technical diving is a fast growing extreme sport allowing divers to go well beyond the depths of classic recreational diving !!!

It is made for people who accept the risks of decompression diving and who are ready to handle the extra required planning and equipment to go deeper and stay much, much longer !

Training at TecEvolution

TecEvolution is a top of the edge, Tech Diving & Rebreather diver training centre based in Koh Chang Marine Park, Thailand, offering all technical diving level dive courses (we do teach recreational diving for tech courses pre requisites with PADI - Professional Association of Diving Instructors), DSAT - Diving Science & Technology and TDI - Technical Diving International. TecEvolution gives Technical diving and Rebreather courses on Koh Chang. For people having some time and willing to take multiple tec courses, we offer all inclusive packages and scuba diving vacations for deep diving and wreck diving on open circuit and closed circuit rebreathers (CCR). These scuba diving packages are perfect for people looking for diving holidays in Thailand or professional dive trainings.

Tech Diving in Koh Chang
We organize technical diving Day Trips around Koh Chang and Pattaya, where you can sharpen your dive skills while scuba diving our wonderful Coral Sites and our local wrecks or do some deep sea diving around samesan islands, from 30 metres to the deepest point of the Gulf of thailand, named the Hole, at 85 metres.

Exploration diving from Koh Chang
In term of technical diving and mixed gas diving, TecEvolution Dive School is a pioneer. Even if it is known that many ships sunk in the area, up to now, nobody has been looking for them. This is the mission of TecEvolution new exploration diving trips. Our target: find, identify and map multiple WWII wrecks in the area to develop what we like the most, deep vrigin wreck diving.

Learn in Koh Chang Marine Park Thailand, dive anywhere
Koh Chang is a Thai National Marine Park. It offers the most beautiful coral dives in Thailand, in blue crystal clear waters. TecEvolution is the only technical dive centre on Koh Chang and is the first to develop deep and exploration diving on the Island. With a new exploration diving boat to find new wrecks in the area, and an easy access to same san for strong curents and extreme diving depths (85 metres), TecEvolution can offer what nobody else can offer in South Eastern Asia. Crystal clear waters and white sand beaches, along with a perfect training ground for deep technical diving.

TecEvolution can offer all inclusive internships in paradise. Learn a dream job, in a dream place or take great scuba diving vacation on the Island, relaxing in Koh Chang and doing some serious technical diving.

You may ask "why would any diver want to go in to the murky dark waters and take extra risks doing so???"

Well if it's true that technical diving is not for everybody, the water is not murky and you get to see things only a handful of other people will ever see.
- Deep wrecks laying there for years with treasure and trinkets laid undisturbed and waiting to be found.
- It gives you access to the marine life of the "twilight zone", where you can se species that may not even be discovered
- To stay underwater for a long time below 30 metres, technical diving is the only way to go, allowing you to completely explore a site (Wreck, Reef, Wall) and complete your mission on it (mapping, research, photography)

During and since the second World War, many ships did sink in the Gulf of Thailand, particularly in the South. Now lying in 50 to 75 metres of sea water, these wrecks offer the best wreck diving sites in Thailand. Completely or Virtually unexplored (the most dived ones have been dived only 30 times), there is still everything to discover. Bells & Telegraphs, Guns, Brass Portholes, are still on them and some of the coordinates have never been dived.

The boat has lovely cabins and living aboard her is relaxing and fun. It comes with an onboard trimix continuous flow blending system and partial pressure blending system so whatever mix you need, you've got it. Under the boat you'll find hang bars with a constant supply of oxygen being pumped to them so you can relax when you complete your decompression stops. All in all probably the best place in Thailand to Technical dive with some of the nicest people you will ever meet. Here are just a few of the wrecks.

Torpedo Wreck
The Torpedo Wreck is a 70 meter Japanese cargo boat sitting upright about 2 hours north from Koh Tao. This dive site provides ideal depths and situations for deep specialties and all levels of the DSAT tecrec program. Maximum depth 54 metres.

Unicorn Wreck
The Unicorn Wreck is a 60 meter Japanese cargo boat sitting upright about 12 km north from Koh Tao. The top of the bow is at 38 meters, lots of penetrations are available for highly skilled technical divers. The wreck is completely intact with resident monster groupers and big red snapper living inside. Schools of jacks and barracuda patrol the area directly above the wreck making for a comfortable ascent. Maximum depth 50 metres.

USS Lagarto
The United States of America W W 2 Balao class submarine USS Lagarto SS-371, has been discovered in the Gulf of Thailand by Jamie Macleod and Stewart Oehl of M.V.Trident , Koh Tao at a depth of 75 metres (225) feet. The USS Lagarto is believed to have been sunk during a daring convoy attack by the Imperial Japanese Navy minelayer HATSUTAKA, at 0010 on May 4 1945. The submarine is a restricted war grave and is being treated with the utmost respect which it deserves. She is currently being researched and documented by our team with the permission of the US Navy's Naval Historical Centre. The exact location of the Lagarto remains a closely guarded secret.

How does it work ?

When technical diving, we use multiple cylinders (tanks) containing different gas mixes, and switch to different mixes depending on the depth we are at so that we optimise our inert gas intake/release at any stage of the dive, and minimize decompression.
As we dive deeper and longer, we rarely stay inside the no decompression limits, so direct ascent to the surface is no more an option. That's why we plan our dives and dive our plan, and back up all our equipment (2 buoyancy control devices, two masks, backup regulator on the main gas,...) so that we are self sufficient underwater and can complete our ascent with the required stop even in case of an emergency.

With the use of mixed gases Oxygen, Helium and Nitrogen you can even dive deeper for even longer, avoiding the problems of narcosis (a lot longer but it never seems long enough). The deeper you dive the more cylinders you will require however the benefits from this slight inconvenience is wayed out by what you will get to experience on every dive.
Technical diving is a great sport and we are lucky enough in Thailand to have 30 degrees of water even when we dive to 85 metres. Rarely do you need to use a torch on any of the 60 metres deep wrecks in the Gulf of Thailand unless you are into full penetration. Speak to people who are Tech divers and they will tell you they would never look back. In fact most give up single cylinder diving to be self sufficient at all time and to concentrate on solo diving and/or on the deep stuff!!!

Sounds Cool !! What do I need to start ?

There are various courses available in technical diving, with various agencies. TecEvolution Thailand teaches Rebreathers and Technical Diving with TDI and DSAT, check out the available courses and the detail and pre requisites of each course and then contact us for any information.