The following options are available for those looking for diving classes alternatives and lessons, as well as information on the best next steps in their education.
Sidemount rigs were originally designed for cave diving. They allow the diver to easily pass through cracks and restrictions (tiny holes), much faster than traditional back mount rigs.
You should know what you are getting. Prices include instruction fees and eLearning fees. Keep in mind that eLearning can cost anywhere from $140 up to $280. If you pay for elearning separately, then a course costing $640 from us could be the same price as a course costing $500 from another source.
One of the big risks for a technical diver is decompression sickness. It occurs when nitrogen gas cannot exit the body thru respiration on ascent as the ambient pressure decreases. Therefore stops have to be executed on ascent in order to avoid a pressure difference too big so nitrogen bubbles can be formed. Buoyancy control is very important to control the stops on ascent and increase efficiency for off-gassing of nitrogen. Another important skill is proper breathing which makes metabolism efficient. Trim, which we call a proper tech diving position such as horizontal with a slight arch in the back, looking forward and knees at a 90 degree angle with fins pointing back. Trim prevents stirring up sediments on the bottom as well as most efficient movement in the water. And of course proper finning techniques to avoid overexertion are mandatory to make a diver achieve maximum performance. Now you might say, we want to have fun when we go diving and not be a machine.
The Sidemount diving setup differs from that used for backmount diving.
While most Sidemount divers use two tanks as a standard, you can also just use one tank (I was told it’s called ‘monkey’) or more than two tanks for deco dives.
Skills (general) – The introductory tech diver will practice their trim and buoyancy with the new equipment configuration. This builds the foundation of efficient diving. Once the foundation is there the student can practice locomotion and move on to more advanced skill practice.
Overhead divers who have been trained in overhead diving are entitled to cave passages created over millions of year of water erosion. These passages can stretch thousands of yards from the entrance. They offer tranquility and beauty that is unmatched by the amazing time they took to form.
Academics - Technical courses have similar academic requirements to other classes. Students will conduct some self-study and present their findings to their instructor. A technical course requires that you plan your dives in advance. This is a crucial step to ensure a safe and successful dive. The gas management discussion in overhead and deep diving is more complex than what most divers are used too. A computer program can be used to calculate gas volumes and reserves.
Apart from the Sidemount equipment you will need your normal wetsuit, fins mask, computer, compass, DSMB, and other accessories.
SDI/TDIIncludes Two Open Water DivingsMinimum Age 18 Years, Minimum 15 Years with Parental Consent.
Sidemount and technical were my first courses. Sidemount diving involves placing your tanks in your hands. I was so numb that my fingers and knuckles had been cut by the end. The idea is to take the tanks off of your hands and let them flow out in front. After making adjustments to the harness's size, the afternoon dive went much easier. I was now able to unclip the harness and 'Superman' with the tanks. Sidemount provides an amazing degree of freedom. Matt installed obstacle courses, and we soon found ourselves flying around them while holding tanks at our feet. We also tried barrel-rolling and swimming upside down.
2nd stage regulator; exposure suit with side pockets, BCD-sidemount, SMB cutting tool, diving spool. Jet fins. Mask and spare mask. Technical diving equipments. 1 long hose (2.10m-7ft), hogarthian, or cave harness.
The very general definition of technical diving is to be exposed to a ceiling that does not allow a diver to ascend to the surface at any moment of the dive. This might be due to a real ceiling, in terms of a cave or a wreck, or a virtual ceiling created by a decompression obligation. In this case, by exceeding the NDL’s, mandatory decompression stops have to be performed on ascent in order to avoid any case of decompression sickness. In most cases this requires the use of special equipment, e.g. Twinsets or Sidemount, special gas mixes and of course additional training to be able to perform those stops accurately on ascent to optimize off-gassing of Nitrogen.
5-6 days
Rebreather training classes are typically 5-6 days long, but can be longer depending on a variety of factors such as the training agency, your local conditions, your instructor, and your ability to meet the class standards.
The depth range of oxygen rebreathers (simple closed circuit) is limited to approximately 6 m, beyond which the risk of acute oxygen toxicity rises to unacceptable levels very quickly.
Technical diving (also known as tec diving or tech diving) is non-professional scuba diving that exceeds the agency-specified limits of recreational diving.