Portugal is well known for its beautiful beaches, but if you're not a fan of sand getting everywhere, we have a great alternative to the beach for you this summer. Discover the best natural pools in Portugal, perfect for a refreshing swim without the hassle of sand. Natural swimming pools in Portugal offer a unique experience, whether you're exploring mainland Portugal or the island of Madeira. We've curated a selection of the top Portugal natural pools, so you can easily find the perfect spot for a dip. Check out our recommendations of these "piscinas naturais" – the Portuguese term for natural pools. Enjoy the serenity and beauty of a natural pool in Portugal this summer!
Porto Moniz Natural Pools, Madeira
Our first stop takes us to the stunning Natural Pools of Porto Moniz, located on the island of Madeira, Portugal. Madeira Island is renowned for its beautiful natural pools, and Porto Moniz arguably tops the list.
Is Porto Moniz worth visiting? Absolutely, and here's why. The Porto Moniz natural pools are unique due to their volcanic origin. These pools gained international fame after being featured by National Geographic and CNN as some of the best natural pools in the world. Formed by cooling lava, these pools offer a one-of-a-kind swimming experience for just 3 euros, allowing you to enjoy the crystal-clear waters and breathtaking sea views.
Seixal Natural Pools, Madeira
Staying on the island of Madeira, the Seixal Natural Pools offer the closest experience to a natural infinity pool in Portugal. These tidal pools, also of volcanic origin, are perfect for a relaxing swim and exploration.
The Seixal Natural Pools feature numerous caves, unique rock formations, and rock pools, providing plenty to discover. One of the best aspects of these lava rock pools is that they are free of charge! However, be prepared—the water here is known for being very cold, making it ideal for those who are brave enough to take the plunge!
Azenhas do Mar Natural Pools, Sintra
Moving on to mainland Portugal, we venture to the province of Sintra, where the charming coastal village of Azenhas do Mar awaits. Upon arrival, crossing a bridge beckons you to pause and absorb the picturesque scenery, especially enchanting at sunset.
Take a leisurely stroll down the cliffs and discover a small beach with a natural swimming pool filled by the sea's water. Nestled beneath the cliffside, this serene spot is adorned with charming white houses, creating a postcard-perfect scene, just a short drive from Lisbon.
Tidal pools of Leça de Palmeira, Porto
In the Porto area you will find the wonderful Tidal pools of Leça de Palmeira, known in Portuguese as "Piscina das Marés" and despite not being completely natural swimming pools, we felt the need to include them in our selection nevertheless. The architect who designed these wonderful coastal pools took full advantage of the surrounding rock formation and the result is a perfect combination of man-made and natural.
These swimming pools in Northern Portugal are well worth a visit, just keep in mind when planning your trip that the pools can get rather busy at the weekends or during the main holiday periods.
Ponte de São João, Rio Coura, Viana do Castelo
Our final stop on our tour of Portugal's natural swimming pools is in Viana do Castelo where you will find quite possibly the most natural swimming pool in Portugal. This pool in the Coura River isn't the easiest place to get to, but the reward is well and truly worth it, as a steep track leads you to this natural pool where the turquoise waters are the star of the show.
The mountain water which springs from the Monastery of São João and makes for a truly magical experience and is well worth the trek for any lovers of wild swimming.
For more natural escapes, check out 6 hot springs and spas you have to visit in Portugal.
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Belém, Lisbon: what to do, where to eat and local tips
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São Pedro Festival in Portugal: where to celebrate in 2025
There’s something about June by the Portuguese seaside that feels a bit magical—late sunsets, salt air, and the sound of neighbours setting up tables right out on the street. For coastal towns like Póvoa de Varzim, the Festa de São Pedro or Saint Peter Festival isn’t just another date on the calendar—it’s when the fishing community lets its hair down, and everyone else joins in.
São João Festival in Porto 2025
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