Recreational Scuba Diver Training
By Natalie Gibb, About.com Guide
- Frequently Asked Questions About Scuba
- Scuba Courses
- Essential Concepts
- Skills and Techniques
- Tips for Easier Diving
- Risks and Risk Management
- Dive Medicine and Safety
- Advanced Diving/ Scuba Specialities
- Dive Tables and Dive Planning
Frequently Asked Questions About Scuba

Before signing up for a scuba class or buying dive gear, you probably have some questions about scuba diving. Here is an overview of some of the most frequently asked questions I hear as a scuba diving instructor. If you have a question that is not answered below, feel free to email it to scuba@aboutguide.com and I will make every effort to answer it!
- How Do I Start Scuba Diving?
- Is Scuba Diving Dangerous?
- Can I Scuba Dive - Scuba Prerequisites
- What Equipment Do I Need to Scuba Dive?
- What Is the Most Important Rule in Diving?
- Can I Dive With Contact Lenses/Glasses?
- How Deep Can You Scuba Dive?
- How Do I Keep My Scuba Mask From Fogging?
- How Long Does a Scuba Dive Last?
- Why Does Diving Make You Need to Pee in Your Wetsuit?
- Can You Dive on Your Period?
- Can You Eat/Drink Underwater?
- Can I Vomit Underwater If I Get Seasick?
- How Does a Wetsuit Keep You Warm Underwater?
- What Can I See on a Night Dive?
- Can You Scuba Dive With Breast Implants?
- What Is the Difference Between Nitrogen Narcosis and Decompression Sickness?
- What Is the Definition of a Squeeze in Scuba Diving?
Scuba Courses

Scuba diving certification organizations offer variety of recreational courses to fit almost any diver's needs. Experience courses provide a chance for non-certified divers to experience the underwater world with an easy half-day course. Open water certification courses offer a life-long scuba certification that allows participants to dive anywhere in the world. Learn about fitness requirements, training options and scuba certification agencies here.
- What to Expect on the First Dive of Your Course
- Medical Requirements for Safe Diving
- Kids' Courses
- Scuba Diving Certification Agencies
- Experience Courses - One Day Courses
- What Is the Open Water Course?
- Limits of Open Water Training
- Open Water Course Options
- Referral Courses - Study at Home, Dive on Vacation
- 5 Courses to Advance Your Diving
- Online Diving Courses
Essential Concepts

Most divers know that they shouldn't hold their breath underwater and that they need to equalize their ears as they descend. Fewer scuba divers understand why they need to follow these rules. A working knowledge of the physics and physiology of diving is essential for safe diving - it encourages divers to follow safety rules and enables them to handle unexpected situations. Here are articles on basic concepts that every scuba diver should understand.
- All Dives Are Decompression Dives
- Ear Equalization Basics
- How Deep Can You Scuba Dive?
- Buoyancy and Scuba Diving
- Buoyancy in Salt Water vs Fresh Water
- Trim - Good Trim Improves Your Diving
- 7 Trim Adjustments - Equipment Configuration
- Pressure and Scuba Diving
- Air Consumption Rates
- Nitrogen Absorption
- Archimedes' Principle and Scuba Diving
- Carbon Dioxide and Scuba Diving
- Boyle's Law and Scuba Diving
- No-Decompression Limits
- Visibility (Viz)
Skills and Techniques

Student divers practice scuba skills and techniques in a shallow, controlled environment before diving in a more realistic setting. Mastering basic skills is important because it helps divers to gain confidence with their equipment and its use. Even experienced divers can benefit from reviewing these techniques periodically to stay proficient with emergency management skills.
- 20 Hand Signals for Scuba Diving
- Passive Communication
- Choosing a Swim Pace
- Frog Kicking
- The Pre-Dive Safety Check
- Controlled Seated Entry
- Five Point Descent
- 6 Steps to a Properly Controlled Descent
- Check For Proper Weighting
- Mask Clearing
- 4 Emergency Ascents and When to Use Them
- Regulator Recovery
- Fin Pivot
- Controlled Emergency Swimming Ascent
- Free Flowing Regulator Breathing
- Low Pressure Inflator Disconnection
- Mask Removal and Replacement
- Natural Navigation
- Neutral Buoyancy Tip: What to Do With Your Hands
Tips for Easier Diving

After years as a full time scuba diving instructor, I have learned many tricks to make scuba diving more enjoyable for both my students and certified divers. Here are some articles aimed at making scuba diving easier!
- Boat Diving - 13 Etiquette Tips
- Buddy System: 8 Tips for Teamwork
- BC's - 4 Easy Ways to Deflate
- Create a "Save a Dive" Kit
- Descents - Easier and Less Stressful
- Foggy Masks - 8 Tricks to Prevent Fog
- Gear - Open Tank Valves Fully
- Hair - 5 Hairstyles for Diving
- Masks - Afraid of Water in Your Mask?
- Navigation Tips
- Panic - How to Handle It Underwater
- Pre-Dive - Relaxing on the Surface
- Rule of Three
- Slates and Wetnotes - Cleaning Tips
- Task Loading (How to Avoid It)
- Tipping Guidelines
- Trim Weights - When to Use Them
- Visibility - Handle Bad Viz Like a Pro
- Wetsuits - How to Put Them on Easily
- Wetsuits - What to Wear Underneath
Risks and Risk Management

Like most adventure sports, scuba diving has minimal risks. Learning to manage those risks is one of the things that makes diving fun and exciting! Diving continues to be a safe activity because of quality diver education - divers who understand potential hazards will be safer underwater because they take precautions to minimize those hazards. This section is not intended to frighten divers, but to teach them how to avoid dangerous situations and behaviors.
- Alternobaric Vertigo
- Carbon Dioxide Poisoning
- Decompression Sickness
- Ear Barotrauma
- Emergency Decompression
- Flying After Diving
- Mask Squeeze
- Nitrogen Narcosis
- Oxygen Toxicity
- Pulmonary Barotrauma
- Reverse Block (Ear Pain on Ascent)
- Salt Water Aspiration Syndrome
- Skin Bends
Dive Medicine and Safety

Can you scuba dive with asthma? How old should a child be before he can safely learn to dive? This section is dedicated to ensuring that scuba divers understand what is required to be physically fit to dive.
- Ascent - Maximum Safe Ascent Rate for Diving
- Asthma and Diving
- Breast Implants and Scuba Diving
- Decongestants and Scuba Diving
- Dehydration - Why It's Dangerous
- Dive Flags - When to Use Them
- Fitness to Dive Checklist
- Flying After Diving
- Kids and Diving
- Golden Rule of Scuba Diving
- Menstruation and Scuba Diving
- Oxygen First Aid for Every Scuba Injury
- Patent Foramen Ovale (PFO) and Diving
- Safety Stops - Why Are They Important?
- Sawtooth Dive Profiles - Are They Dangerous?
- Water Skills Assessment For Certification
Advanced Diving/ Scuba Specialities

Are you already open water certified and ready to take your diving to the next level? Here is information on advanced diving topics and speciality diving courses, as well as hints and tips to help you safely venture into new environments.
- Sidemount Diving
- Nitrox Diving - What Is Nitrox?
- Nitrox Diving - Why Dive With Nitrox?
- 6 Tips for Transitioning to Cold Water Diving
- Wreck Diving Basics
- Night Diving Basics
- What Can You See on a Night Dive?
- Deep Diving Basics
- Underwater Videography - Interview With an Emmy Award Winning Filmmaker
Dive Tables and Dive Planning

Planning a recreational scuba dive using the dive tables is daunting to many divers. At first glance, the dive tables look like a confusing mess of grids and numbers. This section contains explanations of the terminology used on dive tables, as well as simple directions for using the dive tables to determine no-decompression limits, pressure groups, residual nitrogen times and the like. Browse through this section to clarify your understanding of dive tables, and to learn about the concepts behind many of the terms listed on them.
