Continuing Education

Taking your certification to the next level

Columbus SCUBA, Inc. (CSI) encourages all divers to continue diving and learning new skills. CSI offers continuing education courses for divers interested in Recreational, Technical, Public Safety and Professional diving. We also offer ancillary courses such as DAN Oxygen Provider and ASHI AED.

Our Most Popular Continuing Education Courses:


Advanced Open Water

The Advanced Open Water Diver course helps you increase your confidence and build your SCUBA skills so you can become more comfortable in the water. This is a great way to get more dives under your belt while continuing to learn under the supervision of your instructor. This course builds on what you’ve learned and develops new capabilities by introducing you to new activities and new ways to have fun SCUBA diving. The advanced open water diver will acquire the training to dive deeper and explore the underwater world at night.

Rescue Diver

The Rescue course incorporates both fellow diver and self-rescue. The rescue diver course is an integral step in moving on to dive leadership and more importantly educates divers about being prepared in the event of a diving related emergency. It incorporates both classroom and in-water training. Rescue simulations set the scene for a fun and exciting diving weekend. The rescue course is both challenging and fun. A must for every diving enthusiast.

Master Diver

Master Scuba Diver

Join the best of the best in recreational scuba diving and live the ultimate dive lifestyle as a PADI Master Scuba Diver. The PADI Master Scuba Diver rating puts you in a class of distinction – writing your ticket to endless adventure and opportunities through the experience and scuba training that sets you apart.


This Program is designed to provide responsible training for those persons wishing to supervise divers. Upon completion of this program, Dive Masters may conduct any specialized scuba diving activities for which they have received appropriate training. If diving in conditions significantly different from those previously experienced the Dive Master shall require an appropriate orientation.


We also teach:
Specialties, Technical Courses, and Professional Courses!

Recreational Specialties

Our most popular specialty course. In 1985, Dick Rutkowski brought Nitrox Enriched Air diving into the sport diving world with the International Association of Nitrox Diving (Later IANTD). Increase your bottom times by reducing the nitrogen content in the gas you breathe by diving Nitrox. Safe and easy to calculate with either a computer or dive table, Nitrox opens up a whole new world to divers. Nitrox can be taken in conjunction with Open Water or added as a specialty diver certification. All CSI instructors hold ratings of EANx (Nitrox Instructor).

This is a challenging and very exciting course that includes four training dives over at minimum of two days. During your first open water dive you’ll practice line handling, reel use and emergency procedures without entering a cavern. But, for your next three dives, you’re headed into the cavern, staying within the light zone and 40 meters/130 feet total distance from the surface. You learn about cavern navigation and line protocols, planning, swimming techniques, overhead environment hazards, equipment configuration, lighting, guidelines, reels, redundancy, air sharing, silting, air management, and emergency procedures. Caverns offer some of the worlds most beautiful diving!

The Diver Propulsion Vehicle (DPV) Diver course teaches you how to safely explore greater dive site areas with the use a propulsion vehicle. DPVs can be purchased through Columbus SCUBA, Inc. (CSI) at a very reasonable cost. CSI will teach the DPV course at no cost when a DPV is purchased. DPVs are very easy to operate, however, without proper training, a diver can injure themselves or the aquatic environment. We strongly advise that anyone diving a DPV receive proper training and certification. Local quarries, rightfully, require a DPV certification when diving their quarry.

You will complete a minimum of three ice dives for your certification. Dives are typically done as a group working with support personnel, divers, tenders, and safety divers. You are under the ice to learn to control buoyancy, navigate under the ice, and keep in contact with the lead diver and tenders via line pulls. The ice diving student will learn to plan and organize ice dives, equipment configuration, site selection, preparation, hole-cutting procedures, line handling, safety line operations, and emergency procedures.

The night diving specialty is a favorite of Columbus SCUBA, Inc. (CSI). We conduct night dives just about every weekend throughout the summer months in Ohio. A night dive is a dive that occurs without the presence of ambient sunlight. You will learn night dive planning, light use and selection, night navigation techniques, communications and emergency procedures. Introduce yourself to the whole new cast of critters that come out after the sun goes down, and see your favorite dive sites from a whole new perspective at night. This is a course not to be missed.

Want to stay warm? Want to extend your scuba diving season? Then dive dry. A dry suit seals you off from the water and keeps you comfortable, even in surprisingly cold water. There is incredible diving in the world’s cooler regions and in some areas, conditions are even better in colder months. Becoming a dry suit diver allows you to expand your boundaries and dive more places, more often.

If you’re at least 10 years old and certified as a PADI (Junior) Open Water Diver or higher, you can enroll in the Dry Suit Diver course.

Interested in transitioning to doubles and not quite sure? Looking for an alternative? The Open Water Side Mount Diver Course is designed to familiarize divers with the techniques, equipment and mindset required for Side Mount diving. It also enables divers to proficiently assemble and use Side Mount equipment. The Program also teaches divers the proper techniques to safely conduct dives that warrant the use of Side Mount equipment.

If you’re a PADI Open Water Diver who is at least 15 years old, you can enroll in a PADI Sidemount Diver course.

Find lost items and lift them to the surface. It’s fun to use the lift bag. Not only are these skills fun, but very practical and ultimately useful because it’s quite possible that you or someone else may lose something in the water. As a Search and Recovery Diver, you’ll know how to search for and recover it. You will learn the techniques necessary to run search patterns, use a lift bag and safely bring objects to the surface.

Whether sunk on purpose as an artificial reef, or the result of mishap, wrecks open fascinating windows to the past. Most divers find wrecked ships, airplanes and even automobiles nearly irresistible because they’re intriguing to explore, exciting avenues of discovery, and usually teaming with aquatic life. The PADI Wreck Diver course teaches you the ins and outs of responsible wreck diving. Techniques for exploring shipwrecks and how to avoid common hazards include: equipment configuration, wreck penetration, guide line use, overhead environment hazards, planning, organizing, gas management, and special equipment considerations.

Imagine descending below the surface of a clear mountain lake to explore a well-preserved wreck. Interested? Any time you scuba dive at an altitude higher than 300 metres/1000 feet above sea level, you’re altitude diving. If you’re ready to discover a hidden world where few have ventured, then the PADI Altitude Diver Specialty course is for you.

PADI (Junior) Open Water Divers who are at least 10 years old are eligible to take the Altitude Diver course.

The lure of the deep. There’s something exciting and mysterious about exploring deeper dive sites while scuba diving. Sometimes it’s a wreck that attracts you below 18 meters/60 feet, and on wall dives it may be a giant fan or sponge. Whatever it is, to scuba dive with confidence at depths down to 40 meters/130 feet, you should take the PADI Deep Diver Specialty course.

If you’ve earned the PADI Adventure Diver rating or higher, and you’re at least 15 years old, you can enroll in the Deep Diver course.

Rebreathers used to be only for technical diving, but not any more. New Type R (recreational) rebreathers are lightweight, easy-to-transport and have sophisticated electronics to simplify their use. Why dive a rebreather? You get longer no stop limits, reduced gas consumption because you reuse most of your exhaled gas, and unmatched wildlife encounters because you don’t release annoying bubbles. The PADI Rebreather Diver course introduces you to rebreather diving to a maximum depth of 18 metres/60 feet and lets you experience things you never imagined possible as a scuba diver.

To enroll in the PADI Rebreather Diver course, you must:

  • Be a PADI Open Water Diver
  • Be a PADI Enriched Air Diver
  • Have a minimum of 25 logged dives
  • Be at least 18 years old

IANTD is the only training agency that offers Trimix diving at a recreational level. Similar to the Nitrox Diver course, the Recreational Trimix course teaches the diver to safely use Trimix (Helium, Nitrogen, and Oxygen blends) for no-stop dives. Trimix reduces the effects of Inert Gas Narcosis and “takes the edge off” while diving deeper. The Recreational Trimix Course prepares divers for Advanced Recreational Trimix which incorporates decompression stop and diving to depths of 165 ft.

Technical Courses

The Advanced Nitrox course is the first step toward becoming a technical diver. The advanced Nitrox Course incorporates a new realm of equipment and configuration, gas management, oxygen toxicity, decompression procedures, and deep diving. Looking to increase your gas supply? The advanced Nitrox course can incorporate the use of double tanks and decompression bottles. A very exciting and equipment intensive course for the diving enthusiast.

The Advanced Recreational Trimix Course teaches the fundamentals of decompression diving while using Trimix as a back gas and decompressing on an oxygen rich nitrox blend. Significantly reduce the narcotic effects in extended range diving with Trimix and while diving a more sophisticated equipment configuration. Gas management is ever so important during deep dives. Learn advanced gas management and increase your gas supply by adding doubles to your repertoire. Advanced Recreational Trimix is ideal for environments such as Gilboa Quarry and the diving portion of the course can be taught in its entirety there unlike most Trimix courses available.

This program is designed to train divers in safe cave diving. Technical Cave teaches the technical utilization of EANx for cave exploration, and the use of EANx and oxygen for decompression. Cave diving is a type of technical diving in which specialized SCUBA equipment is used to enable the exploration of natural or artificial caves which are at least partially filled with water. It is an extension of the more common sport of cavern diving. Water-filled caves attract cavers and speleologists due to their often unexplored nature, and present divers with a technical diving challenge. Caves often have a wide range of unique physical features, such as stalactites and stalagmites, and can contain unique flora and fauna not found elsewhere.

This program is designed to train open circuit or rebreather divers already involved in deep diving activities to more safely conduct exploration dives requiring extended decompression profiles and helium-based gas mixture. This program is not intended to be used as an enticement to divers who are content to remain in normal Trimix diving limits. Trimix affords a safer means for deep-water exploration for divers who dive deep or perform with a clear head at depth. The IANTD Trimix Diver Program requires the diver to be self-sufficient/reliant. The knowledge and skills taught in this program are more than adequate to qualify divers to perform Trimix Dives outside of training up to 400 fsw (120 msw).

This program is designed to train those who wish to dive to depths between 130 fsw (39 msw) and 200 fsw (60 msw), but who do not wish to breathe air below 130 fsw (39 msw). Trimix affords a means of reducing narcosis on dives to such depths. The knowledge and skills taught in this program are more than adequate to qualify divers to perform Trimix Dives outside of training up to 200 fsw (60 msw).

This Program is designed to train divers to conduct dives to depths between 100 fsw (30 msw) and, at the instructors option, up to 170 fsw (51 msw) using custom blend breathing gas mixtures; and to provide greater understanding of custom blend breathing gas mixtures, a complete knowledge of the limits of any EANx mixture, and the use of EANx and oxygen for decompression. The knowledge and skills taught in this program are more than adequate to qualify divers to perform dives outside of training up to 180 fsw (54 msw).

This program is designed for those individuals already involved in deep diving activities, but is not intended to be used as an enticement to divers who are content to remain in Sport or EANx diving limits. Trimix affords a safer means for deep-water exploration for divers who dive deep or perform with a clear head at depth. The IANTD Trimix Diver Program requires the diver to be self-sufficient/reliant. The knowledge and skills taught in this program are more than adequate to qualify divers to perform Trimix Dives outside of training up to 333 fsw (100 msw).

Professional Development

This Program is designed to extend the diver’s knowledge to safely guide professional cavern tours of non-cavern certified divers (maximum 4 divers) in an overhead environment. Focus of this program is on safety, conservation, professionalism and preservation.

This program is designed to train qualified Dive Masters to teach a part of the Open Water Diving Program and conduct relevant assessment. These individuals may teach and assess the theoretical part of all Open Water Diving Program courses, the complete Snorkeling course, and the complete Free Diver course. Assistant Instructors that have gained progressive experience in teaching may also teach and assess all confined water skills of any level of Open Water Diving Program under the direct supervision and authorization of an Open Water Instructor (or higher).

This Program is designed to train qualified IANTD Instructors. These individuals may teach and assess Snorkel Skin Diver, OW Free Diver, Open Water, Advanced Open Water, Deep Diver (Must be qualified Advanced Nitrox Diver or higher), and Rescue Diver Programs. Open Water Instructors may also supervise Assistant Instructors. Specialty Instructor qualifications can be earned after the IDC is successfully completed and a resume of experience in the specialty area is submitted and approved by the Instructor Trainer.

More than 10 percent of all dive fatalities are actually caused by cardiovascular disease, according to DAN dive accident and fatality statistics. This course teaches divers and other interested parties to provide care for sudden cardiac arrest including the use of an automated external defibrillator (AEDs).

Serious hazardous marine life injuries are rare, but most divers experience minor discomfort from unintentional encounters with fire coral, jellyfish and other marine creatures. This course teaches divers to minimize these injuries and reduce diver discomfort and pain.

As a recreational diver, you can receive training to provide vital first aid that can make a difference to a SCUBA diver with decompression illness. The DAN Oxygen Provider Course provides entry-level training in the recognition and management of possible diving-related injuries using emergency oxygen first aid.

Above are some of our more popular courses that we teach on a monthly basis, but PADI and the many other organizations that we are trained with offer so many courses we can’t possibly list them all. See a course that’s not on our list but you are interested in? Chances are, we have a certified instructor that can teach it! For more info on classes, pricing, scheduling, and more, please contact us to get started.

Ready to Register for your next course?

Public Safety Education and Training

071214-N-5086M-047Public Safety Diving requires proper training and practice. There are many methods and techniques that can be used for different applications. Typically, the most knowledgeable and effective trainers are those that are active in “real life” scenarios and protocol.

Columbus SCUBA, Inc. (CSI) has remained exclusively committed to providing training and equipment for all public safety professionals involved in aquatic incidents. The public safety industry has witnessed a tremendous growth, particularly in the water rescue arena largely due to greater community involvement and the demand for preparedness for aquatic emergencies. CSI is a leader in preparing public safety professionals for aquatic incidents with an extensive list of course offerings covering diving, non-diving and trainer programs. The CSI training system is unique in that it draws on the expertise of an extensive network of public safety professionals which includes Blackwater SCUBA with the leadership of Steve Treinish (Instructor Trainer, Public Safety Diving Association and Water Rescue) and Andy Silverman (Instructor, I.A.N.T.D. Public Safety Diving).

CSI supplies all related equipment for Public Safety Diving needs at special pricing for non-for-profit teams. We specialize in DUI drysuits, OTS communication masks, environmentally sealed regulators and advanced rigging equipment.

CSI strives to provide the most current and professional water rescue training education, technical support and high quality water rescue equipment to the public safety industry. CSI makes its training systems, technical assistance and equipment available to all public safety professionals who respond to water-related emergencies. In keeping with these goals, CSI constantly endeavors to improve its capabilities to prepare the public safety sector through its international network of professionals.

Contact us should your Public Safety Diving team need assistance, training or equipment as it relates to diving. Public Safety Diving seminars may be scheduled upon request. Seminars last between 2 and 10 days depending on the levels in which the team wishes to pursue and prior training. We wish you all safe success in your diving practice, rescue and recoveries.

Interested in continuing your diving education with us?
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