Snorkels Explained: Open, Semi-Dry, Dry & Folding
Eric Larson·December 15, 2022· 4 min read
The snorkel's origins date back some 5,000 years to Crete, where sponge farmers used hollow reeds to breathe underwater. Modern snorkels have improved a lot, but the basic design is the same.
Anatomy of a snorkel
- Opening — the top, where air (or water) enters.
- Tube/barrel — usually plastic or silicone, often curved for a streamlined fit.
- Flex tube — a flexible section for comfort (not every snorkel has one).
- Mask clip — attaches to your mask; many have quick-release buttons.
- Mouthpiece — fairly universal; some are replaceable.
- Reservoir & purge valve — catches water and lets you blow it out.
Open snorkel
The standard open-top design. Water can come down the tube, but the reservoir holds it so you don't breathe it — just blow it out. Great for open water divers waiting on the surface so they don't waste tank gas.
Semi-dry snorkel
Has a splash guard on top to divert waves. A great choice for more splash protection in rough seas.
Dry snorkel
A float valve closes the top when submerged and reopens when you surface. The most popular choice — you can dive with it and then hit the shore reefs with the family.
Folding snorkel
Made of silicone, rolls up in a pocket until you need it. Usually open-top with no reservoir.
Remember to have fun!