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NASE Worldwide

Deep Diver


Not every dive has to be deep (but the best ones often are): Some of the best recreational diving takes place in water deeper than 20 m/65 ft. Such dives include wrecks and walls. The Deep Diver course builds on the skills you acquire as part of the Advanced Diver course to help enable you to make these dives safely and more effectively. Among the topics you will learn:

  • The purpose, problems, hazards, planning, preparation, equipment (additions and modifications), air supplies, personnel, techniques, gas management, emergency procedures (including location and transportation to a hyperbaric chamber) and depth limits for recreational diving.
  • Decompression-related topics include nitrogen narcosis and decompression sickness (definition, cause, symptoms, signs, first aid and prevention) history of decompression, concepts, use of dive computers, definition of terms, problems, principles and techniques.
  • Complete coverage of advanced gas management, problem solutions, exceptions and dive planning are also included.
  • Altitude diving, flying after diving and hyperbaric chamber access and operation is included, as well as other short- and long-term deep diving hazards.

Who Can Take This Course?

To take this course, you must:
  • Be at least 15 years old.
  • Be certified the NASE Advanced Open Water Diver level (or equivalent).
  • Be able to answer No to all questions on the NASE Medical History form, or secure a physician’s approval for diving prior to the start of the course

What is Involved?

The NASE Deep Diver course consists of:
  • Self Study: Using a variety of materials.
  • In-Water Training: Students must acquire at least 40 minutes of Actual Bottom Time under direct instructor supervision.

What Equipment Will You Need?

Required equipment for this course includes:
  • Mask and fins
  • Adequate exposure protection
  • BC and regulator system
  • One full cylinder per dive
  • Dive computer or depth gauge and timer
  • Dive knife or cutting tool

Depending on the dive site and planned activities, it may also be prudent to have items such as audible and visual surface signals. Your instructor may have further equipment requirements in addition to these, such as a primary and backup light.

Get Started Now

Take the Next Step: Contact your local NASE Dive Center or NASE Professional. To find your closest NASE Dive Center, click here.