Snorkel Buying Guide Written by: Debra Davis Created: 11/25/2024 Updated: 02/15/2026

You can’t go diving without the best snorkel gear. It’s an essential piece of equipment for your diving or snorkeling expeditions. Modern snorkels incorporate sophisticated design features that improve your experience, facilitate breathing, and prevent water entry. Choosing the right gear ensures a comfortable and fun time in the water.

Understanding the Best Types of Snorkels

The world of snorkels has evolved far beyond the basic J-shaped tube. While classic designs remain popular for their simplicity, modern designs offer features that make breathing significantly easier.

The Semi-Dry Snorkel

The semi-dry snorkel is a hybrid. While it doesn't keep all water out, it excels at keeping the tube clear when waves splash over the top. It features a splash guard at the top to deflect water and a purge valve at the bottom to drain any small amounts of water that enter. Note that it will still flood if you fully submerge.

This type is ideal for scuba divers who want to conserve tank air while on the surface without the bulk of a fully dry model.

The Dry Snorkel

The dry snorkel features a specialized mechanism at the top—usually a flotation bobber—that shuts the air pathway the moment you dive underwater. When you return to the surface, the valve opens automatically so you can breathe immediately.

This is perfect for snorkelers who stay near the surface and don't want to worry about "purging" (blowing out) water. However, the trapped air makes the snorkel buoyant, which can be annoying for free-divers trying to descend to greater depths.

Essential Design Features

Bore Diameter

The bore is the interior diameter of the tube. This impacts breathing resistance; wider bores make it easier to inhale but increase "dead air" space and drag. Quality snorkels typically strike a balance with a bore between 18-22mm.

Tube Length

Quality snorkels usually measure between 13-17 inches. If a tube is too long, it increases breathing resistance; if it's too short, it won't effectively clear the water surface.

Mouthpiece

Look for soft silicone mouthpieces with ergonomic bite tabs. A good design allows your jaw to stay relaxed while maintaining a secure grip, reducing fatigue during long snorkeling sessions.

Material Considerations

Modern snorkels use high-grade silicone rather than rubber. Silicone is more durable, maintains flexibility, and won't degrade as quickly under sun exposure. The main tube should be made of impact-resistant plastic that is rigid enough to hold its shape but flexible enough to prevent snapping.

Special Features Worth Considering

• Purge Valves: Located near the mouthpiece, these allow you to clear water with a simple, gentle exhale.
• Flexible Tubes: A corrugated silicone section near the mouthpiece lets the snorkel drop away from your face when you switch to a scuba regulator.
• Quick-Release Attachments: These allow you to easily clip or unclip the snorkel from your mask strap.

Fit and Positioning

A snorkel should sit naturally alongside your mask. The top should be approximately level with the crown of your head. Test the combination with your mask before buying; the snorkel keeper should hold the tube firmly without pulling on the mask and breaking the water seal.

Maintenance Tips

• Rinse thoroughly with fresh water after every use, especially the valves.
• Clean with mild soap occasionally to prevent bacterial growth.
• Store in a cool, dry place away from direct sunlight.
• Avoid storing it in a way that deforms the silicone mouthpiece.

Frequently Asked Questions

How often should I replace my snorkel?

A quality snorkel lasts 2-3 years. Replace it sooner if the silicone becomes stiff, starts cracking, or if the valves begin to leak.

Why does my jaw get tired?

This usually happens from a poorly fitting mouthpiece or incorrect positioning that forces you to bite down hard to keep the snorkel in place.

Should I get a dry or semi-dry snorkel?

Dry snorkels are best for beginners and choppy water. Semi-dry snorkels are preferred by scuba divers and those who want a more streamlined, simple design.

Can I use an adult snorkel for my child?

No. Children need smaller mouthpieces and shorter tubes to prevent jaw fatigue and, more importantly, to ensure they aren't re-breathing too much "dead air" trapped in a large adult tube.

How do I know if my snorkel fits properly?

Your snorkel should make breathing feel comfortable without jaw strain. The top should sit just behind the crown of your head when looking forward. You should be able to maintain a seal on the mouthpiece without biting hard, and the snorkel should remain stable as you turn your head.

Ready to hit the water? Shop at Divers Supply today to explore the best snorkeling equipment for your next adventure!