SDI Classes

A group of four scuba divers holding hands and jumping into the ocean from a boat, with a logo that reads 'S.D.I. One Dive Family' against a backdrop of blue sky with clouds and clear water.
Silhouettes of four people on the beach at sunset, with one raising their hands in the air and others holding hands, with the text 'S-D-I ONE DIVE FAMILY' at the top.
A smiling woman in diving gear holding a scuba regulator at a diving event, with the logo SDI and the tagline 'One Dive Family' in the top left corner.
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A scuba diver swimming underwater near coral and fish, promoting a scuba diving adventure event with the text 'Scuba Discovery' and 'Come Explore! Your Adventure Starts Here and NOW!'

SDI SCUBA Discovery

The SDI Scuba Discovery Program is an introductory, non-certification "try dive" experience designed for those who want to breathe underwater for the first time. It allows participants to test the waters in a controlled environment, such as a pool or approved confined water site, before committing to a full certification course.

Group of people in scuba diving gear underwater, practicing safety procedures near the sandy ocean floor.

SDI Full Face Mask

Who this course is for:

  • The certified diver looking for more information about the different full face masks available and how to determine the correct one to meet their needs

Course prerequisites:

  • SDI Open Water Scuba Diver or equivalent

  • Minimum age 18, 15 with parental consent

A scuba diver relaxing on a boat, drinking from a bottle with the ocean in the background.

SDI Boat Diver

Who this course is for:

  • The certified diver looking for more information to maximize the use of boats for scuba diving

Course prerequisites:

  • SDI Open Water Scuba Diver, SDI Junior Open Water Diver, or equivalent

  • Minimum age 18, 10 with parental consent

Underwater scene with a scuba diver exploring coral reef, SDI Open Water Course logo

SDI Open Water Diver

What You Learn – SDI Open Water Diver
SDI Open Water Diver The SDI Open Water Diver course consists of three main phases:

Knowledge Development (online, home study or in a classroom ) to understand basic principles of scuba diving
Confined Water Dives to learn basic scuba skills
Open Water Dives to review your skills and explore!
If you’ve tried diving through a Discover Scuba Diving experience or resort course, the skills you learned may be credited towards a portion of the full PADI Open Water Diver course certification.

Prerequisites
To enroll in the SDI Open Diver course or Junior Open Water Diver course, you must be at least 10-years-old. (SDI eLearning requires a minimum age of 13 years due to international internet laws.)

The Fun Part
The fun part about this course is . . . well, just about all of it because learning to dive is incredible. You breathe underwater for the first time (something you’ll never forget) and learn what you need to know to become a certified diver. During the course, you’ll make at least five pool dives and four dives at local dive sites under the supervision of your SDI Instructor.

Two scuba divers, a woman and a man, on a boat preparing for a dive, with open water and a distant shoreline in the background.

SDI Dry Suit

Who this course is for:

The certified diver looking for advanced training in dry suit equipment, selection and diving techniques. This diver can extend their diving season, spend more time diving in cooler environments and/or enjoy enhancing their dive experience by staying warm and cozy in a dry suit.

Course prerequisites:

  • SDI Open Water Scuba Diver, SDI Junior Open Water Diver, or equivalent

  • Minimum age 18, 12 with parental consent

Two scuba divers with flashlights exploring a coral reef at night underwater, with rocky seabed and marine plants, logos for SDI and NauticVer, and text overlay reading 'SDI Night-Limited Visibility'.

Who this course is for:

  • Individuals that wish to explore the underwater world at night, along with the nocturnal wildlife

Course prerequisites:

  • SDI Open Water Scuba Diver, SDI Junior Open Water Scuba Diver, or equivalent

  • Minimum age 18 , 10 with parental consent

Multiple oxygen tanks at an air fill station, with valves and gauges, labeled under a news banner reading "SDI Air Fill Station Technician".

SDI Air Fill Technician

This detailed course offers more than just the basics of air filling; it’s a comprehensive dive into the responsibilities and safety practices of an Air Fill Station Technician. You’ll emerge with a profound understanding of the main causes of accidents in air filling, the risks and hazards associated with compressed gas cylinders, and the safe operating principles that prevent them. The course covers everything from the definition of breathing grade air, factors affecting air quality and contaminants, to the intricacies of air analysis and air fill production equipment. You’ll also learn about the critical safety systems, fill station systems, and the proper handling and procedures for filling cylinders with air. By the end of this course, you’ll be equipped to handle, transport, inspect, and fill compressed gas cylinders with confidence and precision.

Diver underwater with diving gear including mask, regulator, and wetsuit, holding a diving device, with ocean background.

Who this course is for:

  • The certified diver looking to advance their knowledge and skill set

  • The certified diver looking to extend their no decompression time limits

Course prerequisites:

  • Minimum age 18, 10 with parental consent

  • SDI Open Water Scuba Diver, SDI Junior Open Water Scuba Diver, or equivalent, or current enrollment in one of those courses

A scuba diver wearing a mask and breathing apparatus underwater near a coral reef with small colorful fish swimming around. Logos of SDI and SCUBA Diving International are in the top left corner, and the text "SDI Advanced Buoyancy" is at the bottom.

Master Your Buoyancy. Transform Your Diving.

Without buoyancy, there’s no good diving. SDI Advanced Buoyancy Diver isn’t just another card; it’s your pass to becoming a truly capable diver. You’ll gain major safety, especially on ascent and at your safety stop. Improve your body position, reduce effort and gas consumption, and treat the marine environment with the respect it deserves.

OWN Every Ascent and Stop

Stop exactly where you want, even at your safety stop. Prevent uncontrolled ascents and keep visibility clear by avoiding kicked-up silt. With precise buoyancy, you control the dive, not the other way.

Perfect Your Horizontal TRIM

A truly horizontal profile makes you hydrodynamic. Less drag means less effort and lower gas consumption, so you swim farther, feel better, and enjoy more bottom time on every dive.

Hover CLEAN, Protect Reefs

Solid buoyancy lets you hover above the reef, avoid fin strikes, and leave no trace. No sediment clouds, no accidental contact, just respectful, conservation-minded dives that protect the places you love.