The #1 mistake beginner divers make (and it's not what you think)

Most people assume the biggest beginner mistake is panicking underwater or running out of air. It's not. The #1 mistake is poor equalization technique.

What is equalization?

As you descend, water pressure increases and squeezes the air spaces in your ears and sinuses. If you don't equalize (relieve that pressure) early and often, you'll feel pain, and in bad cases, it can cause barotrauma (ear injury) that ends your dive — or keeps you out of the water for weeks.

Why beginners get it wrong

• They wait too long. By the time you feel pressure, you're already behind. Equalize before you feel discomfort, not after.

• They only do it once. Equalization isn't a one-and-done move — you need to do it every 1-2 feet on descent, especially in the first 15 feet where pressure changes are most dramatic.

• They force it. Pinching your nose and blowing hard (Valsalva) can actually be counterproductive if you're congested or descending too fast. Slow down.

The fix

1. Descend feet-first, slowly.

2. Equalize before you feel pressure — every few feet.

3. If it doesn't clear immediately, stop, ascend slightly, and try again. Never push through pain.

4. Practice on land: pinch your nose and gently blow, or try wiggling your jaw and swallowing to "click" your ears.

Master this early and the rest of diving gets dramatically more comfortable.

— The Abyssal Diving Academy Team