As divers, we all remember the first time something went wrong underwater. 

Maybe your mask wouldn’t stop leaking or a fin strap broke at 60 feet. Maybe you put a bit too much air in your BCD or a stray current sent you drifting a little higher than you meant to go. Maybe you were paying attention to too many things at once, such as your depth, your breathing, your buddy, or your gear, and a feeling of task overload set in.

As a diver, these moments are inevitable if you spend enough time underwater. But don't think of them as failures. Instead, they’re opportunities to learn.

Just as with any skill-based activity, your diving style will improve with repetition, coursework, and experience. Decisions will become clearer and, hopefully, challenging situations will be met with more confidence the more you dive. 

Learning and practice will help turn a certified diver into a good diver. And, because it’s a lifelong process, training never really ends no matter how many certifications you collect. Each time you dive is an opportunity to refine the skills discussed here, and having the right gear for the job makes all the difference.  

The First Lessons: Control and Situational Awareness

Open-water certification teaches the fundamentals like clearing a mask, recovering a lost regulator, buddy breathing, and tracking your air. Although foundational skills allow divers to safely function underwater, another, less-measurable skill is just as important: situational awareness.

Cressi sales manager and PADI/SDI Scuba and Freedive Instructor Theo Knevel says the best way for new divers to practice situational awareness is by concentrating on one core task first.

“I would always ask a new diver to focus first only on buoyancy control,” he says. Because when you’re stable in the water, you free your mind for step two.

Then build this simple but strict habit: every minute, check your buddy, your gauges, [and] check for changes in your surroundings. Repeat this cycle consistently also while doing skills and on every training dive.” 

As your buoyancy underwater starts to feel more natural, adjusting a BCD or clearing a mask might not require complete concentration and you will learn to check your computer or SPG without interrupting the dive.

You’ll begin to practice situational awareness, meaning you’ll no longer bump into the reef with your fins, stir up the bottom as you swim by, or lose track of your buddy on a dive. It’s a skill that only comes from repetitive diving, feedback from dive partners, and a solid level of trust in and comfort with your gear. 

“You won’t get it right immediately, and that’s okay. Learn from mistakes, don’t be too hard on yourself but be aware of where to improve and enjoy the process.”—Theo Knevel

Buoyancy: The Skill That Changes Everything

Just as Theo said, buoyancy control is the skill from which all others flow because maintaining proper position in the water affects nearly every aspect of a dive. Good buoyancy keeps you at the right depth for your dive plan.

It keeps you from damaging your surroundings and helps you conserve air. It allows for stable photography and easier movement through the water column. And, most importantly, neutral buoyancy makes diving feel effortless.

Early on, buoyancy often requires constant adjustment of your BCD. You may feel like you’re  always adding a little bit of air just to release it a moment later when you inhale. Your depth may fluctuate up and down by a few feet during the entire dive as you learn how to make the BCD work with your breath rather than instead of it.

Two things will happen as you log more dives: you’ll lock in your weight requirements, which helps immensely with fine-tuning buoyancy, and you’ll learn to trust your breathing instead of constantly adding and removing air from your BCD. And there will likely be a moment where it just “clicks.”

“This moment is different for every diver and usually happens gradually. I often notice it when a student says the dive felt easier or smoother, that feeling comes when they’ve stopped fighting their buoyancy and start to get it,” says Theo. 

Training programs often revisit buoyancy repeatedly because mastering it unlocks nearly every other skill underwater.

“The key is relaxed slow breathing and giving a student time to relax and “play” in the water after skills, so they can experiment without other tasks.”—Theo Knevel

Building Skills Through Repetition

As we’ve already said, the best way to build confidence underwater can be summed up in one word: practice. Every single skill you learn in your open-water course will benefit through repetition, from putting your gear together before a dive to clearing your mask or giant striding into the water. 

“Repetition builds confidence by subconsciously turning skills into habits. The more often a student performs a skill, the less they must think about it while doing it,” says Theo.

Some skills can only be learned in the moment, like deploying a surface marker buoy, sharing air with a buddy, or managing a descent line in a ripping current. But with a solid base of repetitive practice on the basics, these more-challenging skills become easier to manage. 

Continued training, whether through advanced courses, specialties, or just diving with experienced buddies, reinforces these skills in different environments. 

“When skills are practiced in different environments, like varying visibility or currents, students learn that the fundamentals still apply. This reduces stress and builds trust in their ability to adapt to these changes,” says Theo.

Your buoyancy will be completely different in a 3mm wetsuit in tropical waters versus a drysuit dive at your local rock quarry. But a solid foundation makes for solid progression.

“That confidence [from repetition] allows a new diver to handle different conditions and frees their mind to simply enjoy the dive.”—Theo Knevel

Gear That Supports Learning

With the right gear, learning gets easier. A regulator that delivers air smoothly and consistently, no matter the depth or tank pressure, helps you maintain calm breathing patterns. A BCD that inflates and vents from easy-to-reach dump valves makes small buoyancy adjustments easier to execute. A dive computer with a large, clear display makes it easy to check your numbers at a glance. 

When gear functions reliably, you can spend less time troubleshooting and more time focusing on your environment and skills. This is especially important for novice divers who are facing a steep learning curve in general. 

“Students are already managing many new things, so the last thing they should ever have to worry about is their gear,” says Theo. 

Well-designed, strong and intuitive gear, like Cressi’s, helps remove stress from dive No. 1 on and allows divers to focus on awareness, adjusting buoyancy, and building confidence.”

Knowing how your BCD works, how to keep your mask fog-free, and how to purge your regulator creates a level of trust for your gear underwater, which will help you learn to trust yourself.

“When students can trust their gear, they relax more, learn faster, and again most importantly, enjoy their dive.”—Theo Knevel

Continuing Education in Diving

An open-water certification course often marks the beginning of your dive training, not the end. Advanced courses allow you to go deeper, visit more environments, and enhance skills like photography, navigation, and night diving.

Each new experience expands your comfort zone and makes you a better diver overall. Learning how to use a compass will instill confidence on unfamiliar dive sites. Night dives will make you more comfortable with limited visibility and lighting. Continuing education will also introduce you to new communities of instructors, guides, and potential dive buddies. 

Learning Never Really Stops

No matter what path you choose as a diver—underwater photographer, divemaster, recreational diver—they all begin with the same foundation of solid training, practice, and a willingness to keep learning. 

Having the right gear for the journey is a big piece of the puzzle. Knowing exactly how your equipment works makes it easier to make small adjustments. This trust in your gear leads, in turn, to a more relaxed experience underwater. 

But even the most experienced divers continuously refine their skills over the years. And that’s part of what makes diving rewarding. 

“I still learn and experience new things after more than three decades as a dive instructor,” says Theo. 

Staying open to learning gives you new perspectives and skills, whether it’s improving buoyancy and navigation, or experiencing more challenging environments or complicated technical dives.”

Whether it’s another skill, marine-life identification, or simply more comfort in unfamiliar environments, there’s always something new to learn.

“Continuing education keeps you sharp, confident, and engaged, making every dive more enjoyable. Not by just reading about it in this blog, but by getting out there and getting wet.”—Theo Knevel