The Benagil Sea Cave Adventure

Portugal’s Algarve coastline is an incredible destination filled with beautiful beaches, secluded coves, charming villages, and countless sea caves. Some of these caves are easy to reach, while others require more effort. Some are fairly ordinary, but others are remarkably beautiful.

Among them, one cave is particularly spectacular: the Benagil Sea Cave. Chances are you have already encountered photographs of this famous natural formation online. The cave is located near Benagil Beach, not far from the popular resort town of Armação de Pêra.

Is the Cave Easy to Reach?

Getting to the Benagil Sea Cave is not as simple as walking to an ordinary attraction. There is no direct land route into the cave, so reaching its interior requires traveling across the water.

There are essentially three ways to experience it. You can look down into the cave through the large opening in its roof, join a boat excursion, or swim from the beach.

The easiest choice is walking along the cliffs above Praia de Benagil. A roughly five-minute walk takes you to the top of the cave, where you can look through the enormous opening and get an idea of its scale.

Although the view from above is interesting, it can also leave you wanting more because you cannot actually enter the cave from there.

Continuing farther along the coastal path brings you to a viewpoint overlooking Praia de Benagil. The scenery from this spot is impressive and gives you a good perspective of the beach and surrounding coastline.

Once you make your way down to the beach, you will quickly notice groups of visitors waiting for the boat tours that depart from the shore. We decided not to take one and instead chose a more adventurous approach: swimming to the cave ourselves.

One important point is that many boat excursions do not permit passengers to get off inside the cave.

The Swimming Adventure

Swimming to Benagil Cave requires reasonably calm sea conditions. The distance is not particularly great, at roughly 200 meters each way according to my GPS, but the experience is different from an ordinary short swim.

Once you leave the beach, you are essentially swimming in open water, and the shoreline may no longer be directly visible. It is also important to keep away from the cliffs because a larger wave could push you against the rocks.

Another thing to watch carefully is boat traffic. Numerous sightseeing boats travel around the cave, so swimmers need to remain alert and make sure they are visible.

Our entire round trip took approximately 10 minutes, including the time we spent waiting for boats to move away from the entrance.

Entering the Cave

Reaching the entrance to Benagil Cave is an impressive experience in itself.

During my first attempt, the sea was fairly rough, with relatively large waves. We had to wait several minutes before conditions allowed us to safely make our way inside.

Once you enter, however, the effort immediately seems worthwhile. The interior is extraordinary and can feel almost like entering a huge natural cathedral.

A large circular opening in the roof allows sunlight to pour into the chamber, creating a dramatic combination of illumination and shadow.

Unfortunately, I only had a GoPro with me during that first visit. The photographs were disappointing because the difference between the bright opening and the dark interior was simply too great for such a small camera to capture properly.

Even so, the actual view inside the cave was incredible.

Bringing a Camera Safely

Because I was unhappy with the photographs from the GoPro, my family and I decided to return for another attempt.

My wife came up with the excellent idea of bringing my Fuji X-E1 together with a Samyang 8mm fisheye lens. We placed the camera inside a waterproof bag and secured it on a boogie board to make transporting it through the water safer.

The setup worked remarkably well and allowed us to capture the cave from a completely different perspective.

Photographing Benagil Sea Cave

Taking photographs inside Benagil Cave is more challenging than it might initially appear. I found that a 12mm wide-angle lens was not quite wide enough for the composition I wanted, so I ultimately preferred the fisheye lens.

The biggest photographic difficulty is the enormous dynamic range inside the cave. The difference between the brightly illuminated opening and the deep shadows of the interior is extreme.

For one photograph, I processed the image in Lightroom by reducing the highlights and opening the shadows as much as possible. This helped reveal more detail in both the illuminated and darker sections of the cave.

Experimenting with HDR

I also experimented with HDR photography.

For this approach, I combined three separate exposures and processed them together in Lightroom. The technique helped manage the substantial contrast between the sunlit portions and the shadowy interior.

Even though photographing the cave requires some patience and experimentation, the unusual lighting makes it a fascinating place for photography.

Why You Should Visit Benagil Sea Cave

The Benagil Sea Cave is absolutely worth experiencing. Its unusual shape, dramatic opening, golden rock formations, and connection to the ocean make it one of the most memorable natural sights along the Algarve.

Swimming there can make the visit even more enjoyable, especially if you are traveling with children who are comfortable in the water. My boys particularly loved the adventure.

I also found that visiting shortly before lunchtime produced better conditions. The early morning light did not seem as appealing during my visits.

Still, the exact timing is not the most important part of the experience. Sometimes the best thing to do is simply sit inside the cave, take in the surroundings, listen to the water, and appreciate the atmosphere.

Benagil is one of those places that is difficult to fully capture in photographs. Being there in person and experiencing the cave yourself is what makes it truly special.