Snorkeling & Clear Water in Portugal

Clear water and good snorkeling aren't the same thing, even though they're usually marketed as one. A beach can look postcard-blue and still have almost nothing to see underwater if it's a flat sand basin with no rock structure or marine life nearby. The beaches in this collection are chosen for actual underwater interest: rocky headlands, seagrass meadows, or protected marine reserve boundaries where fish life is denser because fishing and anchoring are restricted, not just visibility alone.

22 beaches are currently indexed here in Portugal. A practical note: visibility is usually best in the first few hours after sunrise, before wind picks up and boat traffic stirs up sediment near popular coves, worth timing your visit around if snorkeling is the actual goal rather than a bonus activity.