Should I buy a full-face snorkel mask?

Avoid these. They are difficult to clear if water leaks in, can trap carbon dioxide, and are generally unsafe for active snorkeling compared to a traditional mask and snorkel.

Do I need a snorkel vest?

If you aren't a strong swimmer, yes. Many rental shops provide them, but if you want your own, buy an inflatable vest that packs down into a small pouch.

Snorkel Gear to Pack for the Caribbean

Pack your own mask and snorkel to ensure a proper fit and better hygiene. Leave the fins at home and rent them locally to save significant luggage space, as they are bulky and easily found at any beach shack.

Prioritize a high-quality mask. Test your mask at home by placing it on your face without the strap. Inhale slightly through your nose; if the mask sticks to your face and doesn't fall off, it has a good seal. Buy a silicone-skirted mask, as clear or translucent silicone lets in more light, reducing the feeling of claustrophobia.
Select a dry-top snorkel. Choose a snorkel with a dry-top valve. This mechanical float closes the top when submerged, preventing water from entering the tube. This is a game-changer for beginners or anyone who doesn't want to clear their tube constantly.
Bring anti-fog drops or gel. Don't rely on spit. Buy a small 1-ounce bottle of anti-fog gel. Apply it to a dry lens, let it sit for a minute, and rinse it before getting in the water to ensure you can actually see the reef.
Decide on fins. Only pack your own fins if you have specific foot issues or require prescription gear. Otherwise, rent them for $5–$10 a day. If you must bring your own, look for 'travel-length' fins which are shorter and designed to fit inside a standard carry-on.

Should I buy a full-face snorkel mask?: Avoid these. They are difficult to clear if water leaks in, can trap carbon dioxide, and are generally unsafe for active snorkeling compared to a traditional mask and snorkel.
Do I need a snorkel vest?: If you aren't a strong swimmer, yes. Many rental shops provide them, but if you want your own, buy an inflatable vest that packs down into a small pouch.