I Due Mari Beach
Two seas, two atmospheres, and a strip of sand that connects them: one of Caprera’s most iconic places, where the landscape changes with every step.
Discover I Due Mari Beach
Spiaggia I Due Mari, also known as Cala Portese (sometimes referred to as Two Seas Beach), is one of the most unique stretches of coastline in Caprera. A narrow strip of pale sand connects two opposite sides of the island, separating two bays with distinct characteristics: on one side a more sheltered and protected inlet, on the other a more open front where the sea shifts in color and depth within just a few meters.
This unusual layout makes the beach extremely versatile. Depending on wind and weather conditions, one side may appear flat and crystal-clear, while the other shows gentle ripples and deeper shades of blue. The predominantly sandy seabeds create colors ranging from very pale green to bright turquoise, ideal for long swims and relaxed snorkeling.
Behind the beach, small dunes and Mediterranean scrub frame the isthmus, offering — especially during quieter hours — a pleasant sense of openness and tranquility. Reaching I Due Mari by dinghy is a real privilege: it is possible to approach the shore via the designated landing corridor or remain offshore, choosing the more sheltered side to enjoy calm and transparent waters.
What to expect in this paradise
A surprising double beach: one side calm and sheltered, the other more open and luminous, with sandy seabeds, intense colors, and the freedom to always choose the best water depending on the wind.
Tour I Due Mari Beach by dinghy
The ideal tour to discover La Maddalena, a splendid archipelago composed of more than 60 islands enveloped by turquoise sea and postcard-perfect natural landscapes, such as those of Cala Coticcio, Cavaliera Beach and Cala Corsara.
Your opinion
ECCELLENTE In base a 92 recensioni Pubblicato su Filip Majchrowski26/09/2025Trustindex verifica che la fonte originale della recensione sia Google. I strongly recommend this boat rental. They are fully professional like I have never seen before in Croatia or France. The Flag Team is super positive, helpful and they a kind of „no-problem” People😀👍🏽 Alessandro is a great Partner to rent boat from. He is very honest, he gave us a great tips where to go and all of his recommendations were top. The caution/deposit has been returned immediately. We took Reiner R10 and I do recommend this boat as well as Magazzu MXII as we have rented both - one day each. 10/10! On Sardinia they are the best choice! Wishing you all a great day on boat😀 FilipPubblicato su Michele Luterotti22/09/2025Trustindex verifica che la fonte originale della recensione sia Google. An unforgettable experience! Alessandro was the perfect skipper – professional, friendly, and truly passionate about showing us the beauty of Sardinia. The boat was absolutely stunning, well-kept, and very comfortable. We spent the whole day exploring hidden coves and dreamlike beaches, with a wonderful swim stop in the crystal-clear waters around Spargi, La Maddalena, Budelli and Caprera. Everything was perfectly organized, and the atmosphere was relaxed yet full of adventure. Huge thanks to Alessandro and the entire Flagsardinia team for such a fantastic day – highly recommended!Pubblicato su Alex Santori20/09/2025Trustindex verifica che la fonte originale della recensione sia Google. Thank you for making our family trip to Italy one of the best!!! It was our first time in Sardinia and it won’t be our last. I would like to shoutout Gabriele for our last minute booking, he was very responsive and the team was excellent from start to finish. The boat came with drinks , fins, rock shoes, and snorkel gear, the absolute best!! I highly recommend their services! Thank you Fredrico for the great tour and showing us all of the best stops along the coast. Grazie!!! 🇮🇹☀️Pubblicato su Mariano G20/09/2025Trustindex verifica che la fonte originale della recensione sia Google. Muy bueno el servicio, impecable todo. Gabriele y alessandro son unos genios. Sin duda volveré!Pubblicato su Andrea Scorcione18/09/2025Trustindex verifica che la fonte originale della recensione sia Google. Super esperienza con Flag Sardinia! Abbiamo noleggiato il Renier R7 Tourer a inizio luglio, dal primo pomeriggio fino al tramonto, senza skipper perché ho la patente. Conosco bene la zona, ma con questo gommone è stato davvero un piacere navigare: siamo andati verso Tavolara e il mare era perfetto, piatto come una tavola. Ne abbiamo approfittato per spingere un po’ e infatti abbiamo consumato un po’ di benzina :), ma ne è valsa la pena: è il gommone più bello che abbia mai guidato! Ho apprezzato tantissimo il frigorifero super capiente, il tavolino esterno comodissimo per l’aperitivo e il lavabo esterno (mai visto su altri gommoni!). La spiaggetta dietro è davvero pratica, e ci hanno dato anche maschere, pinne, scarpette da scoglio e dei teli mare bellissimi. La dinette di poppa è super comoda per rilassarsi, e anche la postazione di guida è davvero ben fatta. L’aperitivo al tramonto è stato il top: tutto super fornito, con acqua, vino, formaggi, salumi e patatine, il tutto in una location da sogno. Consiglio Flag Sardinia a chi vuole vivere una giornata in mare senza pensieri, con un gommone di livello e tutto quello che serve per godersi la Sardegna al massimo!Pubblicato su Fabian Krebs15/09/2025Trustindex verifica che la fonte originale della recensione sia Google. Ich habe schon einige Boote gechartert, aber noch nie einen so tollen und professionellen Service erlebt! Die Kommunikation im Vorfeld war super, um den Ablauf am Miettag zu beschleunigen, und wir erhielten alle wichtigen Informationen (Standort etc.). Snacks, Softdrinks, Schnorchelausrüstung sowie Strandtücher waren im Mietpreis inbegriffen! Das Boot (Renier R6) war in einwandfreiem Zustand, sehr sauber und perfekt ausgestattet. Nicht zuletzt ist das gesamte Personal sehr freundlich und hilfsbereit. Wenn Sie in dieser Gegend ein Boot mieten, tun Sie es hier! Wir hatten eine tolle Zeit!Pubblicato su Romane06/09/2025Trustindex verifica che la fonte originale della recensione sia Google. Nous avons passé une superbe journée grâce à Flag Sardinia ! Dès notre arrivée, l’accueil a été chaleureux et professionnel, ce qui met immédiatement en confiance. Toute l’équipe a été très disponible pour nous expliquer le fonctionnement du bateau et nous donner de précieux conseils sur les plus beaux coins à découvrir. Le bateau était en parfait état, très propre, confortable et facile à prendre en main. Nous avons vraiment apprécié le fait qu’il soit bien équipé, ce qui nous a permis de profiter de la journée en toute tranquillité. On sent que tout est bien entretenu et pensé pour que l’expérience soit agréable du début à la fin. La navigation a été un vrai plaisir et nous avons pu accéder à de magnifiques criques et plages uniquement accessibles par la mer – un vrai bonheur ! L’équipe a aussi su nous orienter sur l’itinéraire, ce qui nous a permis de découvrir des endroits incroyables que nous n’aurions pas trouvés seuls. En résumé, une expérience 100 % réussie : un service irréprochable, des personnes accueillantes et passionnées, et un bateau au top. Nous recommandons Flag Sardinia sans hésitation à tous ceux qui souhaitent passer une journée inoubliable en mer en Sardaigne. Nous reviendrons avec grand plaisir ! 🌊⚓️Pubblicato su Flavio Pennisi31/08/2025Trustindex verifica che la fonte originale della recensione sia Google. Ottima esperienza, da ripetere assolutamentePubblicato su Raffaele Caccavo31/08/2025Trustindex verifica che la fonte originale della recensione sia Google. Esperienza magnifica, personale estremamente cortese e preparato. Lo skipper Ale é stato super disponibile, la sua conoscenza del territorio ci ha permesso di visitare calette uniche e meravigliose. Super consigliatoPubblicato su lucrezia aliotta31/08/2025Trustindex verifica che la fonte originale della recensione sia Google. Oggi abbiamo noleggiato un gommone con loro ed è stata un’esperienza fantastica! Lo staff è stato super gentile e grazie a loro abbiamo potuto scoprire angoli meravigliosi della Sardegna, calette nascoste e un mare da sogno. 🌊💙È stata una giornata indimenticabile, divertente e rilassante. Consigliatissimo a chiunque voglia vivere il mare della Sardegna in libertà e in totale sicurezza.🙌
Fun Facts and Frequently Asked Questions
Where is Spiaggia I Due Mari located?
Spiaggia I Due Mari is located on the island of Caprera, in north-eastern Sardinia, within the La Maddalena Archipelago. It sits on a unique stretch of land where a narrow strip of sand separates two different sides of the sea.
This distinctive geographical feature makes the beach truly unique: on one side, the sea is more open and exposed, while on the other side it is calmer and more sheltered.
The landscape is characterized by light-colored sand, smooth granite rocks and Mediterranean vegetation, all set within a well-preserved natural environment.
How can you reach Spiaggia I Due Mari?
Spiaggia I Due Mari can be reached by land via the island of Caprera, starting from La Maddalena and crossing the bridge that connects the two islands. By following the main road, you can arrive close to the beach and complete the final stretch on foot.
Access is relatively easy and does not require long or demanding walks, making the beach suitable even for visitors who prefer more accessible locations.
Alternatively, it can be reached by sea, which is a particularly interesting option to fully appreciate the unique shape of the beach and combine the visit with nearby coves.
With Flag Sardinia, you can reach the area aboard luxury RIB boats: choose bareboat rental if you have a boat license or opt for a skippered experience for a more relaxed and personalized day.
What is Spiaggia I Due Mari famous for?
Spiaggia I Due Mari is famous for its unique formation: a narrow strip of sand that separates two different sea conditions.
On one side, the water can be more exposed to wind and waves, while on the other side it remains calmer and more sheltered. This allows visitors to choose the most comfortable side depending on the weather and sea conditions, even within the same day.
This feature also makes the beach particularly interesting from a scenic perspective, offering changing views depending on which side you look at.
It is a destination appreciated both by those seeking relaxation and by those interested in experiencing different sea conditions in a single location.
What can you do at Spiaggia I Due Mari?
At Spiaggia I Due Mari, visitors can enjoy different experiences within the same beach.
You can choose the sheltered side for calm swimming and relaxation, or move to the more exposed side to observe a more dynamic and wind-affected sea.
The beach is also suitable for snorkeling in calmer areas, while the sandy sections are ideal for sunbathing and enjoying the surrounding landscape.
Arriving by sea allows you to explore nearby coves as well, creating a more varied and dynamic day itinerary.
When is the best time to visit Spiaggia I Due Mari?
The best time to visit Spiaggia I Due Mari is from May to October. During the summer months, the beach is quite popular thanks to its accessibility and its unique geographical feature.
June and September are especially recommended for those who want to enjoy the beach in a more relaxed atmosphere, avoiding the peak crowds of July and August.
Thanks to its two different sides, the beach remains an interesting destination even on windy days, as there is usually always a more sheltered area available.
Why visit Spiaggia I Due Mari during a boat tour?
Visiting Spiaggia I Due Mari during a boat tour allows you to fully appreciate its unique shape and natural setting.
From the sea, you can clearly see the narrow strip of sand separating the two sides and better understand the geographical peculiarity of the beach.
A boat tour also allows you to choose the best stopping point depending on wind and sea conditions, making the most of the beach’s distinctive layout.
With Flag Sardinia, this stop can be included in a wider itinerary across the La Maddalena Archipelago, combined with destinations such as Cala Coticcio, Cala Napoletana and other iconic beaches of Caprera. You can choose bareboat rental for independent navigation or opt for a skippered experience for a completely stress-free day.
Ready to go?
Jump aboard our boats! If you would like to book your trip to discover the Emerald Coast, simply let us know when and which dinghy you would like to use: we will immediately inform you of availability.


