10 Habits of
a Better Diver

Whether you are finishing your first certification or have hundreds of logs under your belt, diving is a skill that rewards continuous refinement. To help you stay sharp, safe, and effortless underwater, we’ve compiled the ultimate guide to mastering your dive fundamentals.

1. Stay Hydrated

Hydration is one of the most overlooked aspects of dive safety. Drink water before and after every dive — not coffee, not energy drinks, water. Here’s why it matters: dehydration thickens your blood, which impairs the body’s ability to off-gas nitrogen efficiently during and after a dive. This directly increases your risk of Decompression Sickness, even on dives well within your NDL. The dry compressed air you breathe through your regulator also accelerates moisture loss with every breath. Add sun, heat, and the physical effort of swimming, and dehydration can set in faster than you expect.

2. The Pre-Dive Safety Check

Safety starts before you even hit the water. Never skip the BWRAF (BCD, Weights, Releases, Air, Final check) with your buddy. It isn’t just about gear; it’s about familiarizing yourself with your buddy’s equipment so you can react instinctively if an issue arises.

3. Perfecting the Buoyancy Check

Being over-weighted is a common mistake that leads to high air consumption and poor trim. To find your ideal weight, perform a check at the surface with an empty BCD while holding a normal breath. You should float at eye level and begin to sink slowly only when you exhale. Keep in mind that as your tank empties toward the end of the dive, it becomes significantly more buoyant — adding an extra 1 kg to your weight setup accounts for this and ensures you can still complete your safety stop comfortably without fighting to stay down.

4. Equalization

Don’t wait for discomfort to clear your ears. Equalize on the surface and then every meter during your descent. If you feel pain, you’ve waited too long—ascend slightly until the pressure eases and try again gently. For a deep dive into the best techniques, check our guide on Mastering Ear Equalization.

5. Trim and Buoyancy

While buoyancy is your vertical control, trim is your horizontal position. Aim to be completely flat in the water, with your knees slightly bent and fins up. This reduces drag and protects the reef.

6. Refine Your Finning Technique

The flutter kick is the default kick most divers learn, but it is inefficient and stirs up sediment. Master the Frog Kick instead. It provides more power with less effort, directs water behind you rather than downward, and keeps your heart rate low to extend your bottom time. To know more about finning techniques, read the Finning Technique article to discover advanced propulsion styles and maximize your efficiency. Not sure if you’re doing it right? Ask your instructor to watch your kicks during a dive — a few minutes of feedback underwater can make a bigger difference than hours of solo practice.

7. Dive Computer is a Must

Relying on a buddy’s computer is a dangerous practice. Your depth profile is unique to you. A personal dive computer provides real-time data on your No-Decompression Limit (NDL) and ascent rates, making it your most essential safety tool on every dive.

8. Ascent Rate

Always ascend slowly—never exceeding 9 meters (30 feet) per minute. Most modern computers will alarm if you move too fast. Use your computer as a speedometer to ensure a safe transition as you off-gas.

9. Never Skip Your Safety Stop

A safety stop at 5 meters (15 feet) for 3 minutes is your final safeguard against Decompression Sickness (DCS). Use this time to practice your neutral buoyancy and reflect on the highlights of your dive before surfacing.

10. Log Your Dives

Your dive log is more than a record — it’s your personal coaching tool. Every entry captures a snapshot of your performance: the weights you used, your air consumption, the conditions, the depth, the duration. Over time, these details reveal patterns you’d never notice dive by dive. Are you going through air faster in cold water? Do you always need an extra kilo in a wetsuit? Your logbook will tell you. It also documents your experience for future dive operators, helps you prepare for specialty courses, and keeps your memory of underwater moments alive long after the surface interval.