Spain’s Most Spectacular Natural Rock Arches Rising From the Sea

Nature is the ultimate architect, and nowhere is that more obvious than along Spain’s coastlines.

Over millions of years, the relentless Atlantic and Mediterranean have been slowly, patiently carving masterpieces into Spanish cliffs—creating sea arches, flying buttresses, and stone cathedrals that no human could ever replicate.

These formations are geological time capsules, capturing the ongoing battle between land and sea in frozen moments of spectacular beauty.

Some can only be seen at low tide, others require boat trips or coastal hikes to reach, and all of them will remind you just how small we are compared to the forces that shape our world.

The best part? Every single one of these natural wonders is temporary—eventually, they’ll all collapse back into the sea.

So consider this your reminder: visit them now, before they’re gone forever.

1. Playa de las Catedrales, Galicia

This is it—the crown jewel of Spanish sea arches and arguably one of the most spectacular natural formations in all of Europe.

Located near Ribadeo on Galicia’s northern coast, the Beach of the Cathedrals earned its name because the towering rock arches look exactly like the flying buttresses of a Gothic cathedral.

These formations reach up to 30 meters high—that’s nearly a 10-story building—and walking beneath them at low tide feels like entering a sacred space created by the Cantabrian Sea itself.

The star attractions are the Triple Arco (three connected arches against the cliffs) and the Illa de Xangal (a standalone arch rising from the shallow waters).

Here’s what you need to know: this beach is only accessible during low tide, and you’ll need to make advance reservations through the Xunta de Galicia website during peak season (July to September).

At high tide, the entire beach disappears underwater, so check those tide schedules religiously before visiting.

If the wind is whistling through the caverns, locals say you can hear something like ghostly organ music echoing off the stone—which is either beautiful or terrifying depending on your perspective.

2. Pont d’En Gil, Menorca

Menorca keeps its treasures hidden, and Pont d’En Gil is one of its finest secrets.

This spectacular natural rock bridge sits near Ciutadella on the western coast, accessible via a pleasant walk along the famous Camí de Cavalls coastal path.

The arch itself is a dramatic limestone formation that rises from the turquoise Mediterranean waters, creating a perfect frame for photographs and a stunning backdrop for kayakers who paddle beneath it.

Unlike many sea arches that require tricky access, this one is relatively easy to reach—making it perfect for families and casual hikers.

The surrounding coastline features additional caves and rock formations that are equally impressive, so bring your snorkel gear and plan to explore.

Sunset is particularly magical here, with the golden light streaming through the arch and reflecting off the crystal-clear waters below.

3. Sa Foradada, Mallorca

Picture a massive rocky peninsula jutting into the Mediterranean with a 18-meter-wide hole punched clean through its center.

That’s Sa Foradada, one of Mallorca’s most iconic natural landmarks and a sight that’s been inspiring artists and visitors for centuries.

Located near Deià on the island’s dramatic northwest coast, this formation is best viewed from the terrace of Son Marroig mansion, which offers one of the most photographed vistas in all of Spain.

Adventurous visitors can hike down to the rocky beach below and get close to the arch itself—though the steep trail takes about 45 minutes each way.

The restaurant at Son Marroig serves dinner with views of the arch at sunset, and if you time it right, you’ll watch the sun sink directly through the hole in the rock.

Legend has it that Archduke Ludwig Salvator of Austria, who once owned this property, fell so deeply in love with this view that he devoted his life to documenting the Balearic Islands.

One look at Sa Foradada and you’ll completely understand.

4. Cova d’en Xoroi, Menorca

This isn’t just a sea cave with arches—it’s a multi-level natural wonder that’s been transformed into one of the Mediterranean’s most unique sunset bars.

Located in the cliffs of Cala en Porter on Menorca’s southern coast, Cova d’en Xoroi features multiple archways and openings that frame the sea in impossibly beautiful ways.

According to local legend, a shipwrecked Moor named Xoroi once lived in this cave, eventually kidnapping a young local woman and raising a family here—until they were discovered years later and he threw himself into the sea.

Today, you can visit during the day as a museum or come at sunset for drinks while watching the sun sink into the Mediterranean through those dramatic natural openings.

At night, it transforms into a nightclub—making this possibly the only place on Earth where you can dance under ancient rock arches with the sea crashing far below.

The atmosphere is genuinely unlike anywhere else in Spain.

5. Torrent de Pareis, Mallorca

Where the massive Torrent de Pareis canyon meets the sea at Sa Calobra, you’ll find some of Mallorca’s most dramatic natural architecture.

The journey to reach this spot is already legendary—a winding road through the Serra de Tramuntana mountains that includes the famous “Nus de sa Corbata” (tie knot), where the road loops completely over itself.

Once you arrive, a walk through tunnels carved into the mountain leads you to a small beach surrounded by towering limestone cliffs, natural arches, and rock formations that seem almost impossible.

The canyon walls rise up to 200 meters on either side, creating an amphitheater of stone that hosts an annual choral concert every summer.

At certain times of year, hikers can walk up the dry riverbed into the canyon itself, passing beneath natural bridges and through narrow passages carved by millennia of flash floods.

This is nature at its most dramatic—and getting there is half the adventure.

6. Playa de Covachos, Cantabria

There’s a reason this beach keeps popping up on “secret beaches of Spain” lists, and the sea arches are a big part of it.

Located near Santander on the northern coast, Covachos features caves and arch formations carved into dramatic rocks—plus a very special trick at low tide.

When the tide goes out, a small stretch of sand emerges that connects the beach to Castro islet, giving visitors the sensation of walking on water to reach a rock formation in the middle of the sea.

The slope leading down to the beach is steep and challenging, which helps keep crowds away and preserves the wild, untouched feeling.

Many visitors park at nearby Arnía beach and walk along the coastal path to reach Covachos—the views along the way are spectacular.

This area has been a naturist destination for decades, and the combination of dramatic geology and peaceful atmosphere makes it popular with photographers and nature lovers.

Just remember to check those tide times before you go.

7. Es Pontàs, Mallorca

Rising dramatically from the Mediterranean near Cala Santanyí, Es Pontàs is a massive natural arch that’s become famous in the rock climbing world.

The arch itself stands about 25 meters tall and forms a perfect bridge of golden limestone above the turquoise sea.

In 2006, climber Chris Sharma completed the first “deep water solo” ascent of Es Pontàs—climbing the underside of the arch without ropes and dropping into the sea below—putting this formation on the map for adventure athletes worldwide.

For non-climbers, the arch is best viewed from the water by kayak or paddle board, or from the coastal path that runs along the cliffs above.

Boat tours from nearby Cala Figuera regularly pass by, giving visitors a chance to photograph this spectacular formation from sea level.

The golden stone glows almost amber in late afternoon light, making sunset the ideal time for photography.

8. Cuevas del Mar, Asturias

The “Sea Caves” beach near Llanes on the Asturian coast is exactly what it sounds like—a stretch of golden sand surrounded by natural arches, caves, and rock formations carved by the Cantabrian Sea.

What makes this spot special is the accessibility: unlike many dramatic coastal formations, Cuevas del Mar is family-friendly with easy beach access and relatively gentle waves.

At low tide, you can walk through several of the arches and explore caves that penetrate deep into the cliffs.

The surrounding green hills of Asturias create a striking contrast with the golden sand and blue-gray waters typical of Spain’s north coast.

There’s a small beach bar serving drinks and snacks, plus facilities including showers and lifeguards during summer months.

This is where you come when you want spectacular geology without the challenging hikes or restricted access of more remote formations.

9. Flysch de Zumaia, Basque Country

The coastline around Zumaia in the Basque Country features something geologically extraordinary: exposed layers of rock that tell 60 million years of Earth’s history.

These flysch formations include dramatic overhangs, sea stacks, and natural arches created as the softer layers erode faster than the harder ones.

If you’ve seen Game of Thrones, you’ve already seen this landscape—it stood in for Dragonstone in several episodes.

The best way to experience the formations is via the coastal path between Zumaia and Deba, which offers spectacular views of the layered cliffs and various sea arches along the route.

At low tide, you can walk along the wave-cut platforms beneath the cliffs, getting up close to rock formations that were laid down when dinosaurs still walked the Earth.

Guided geological tours are available and highly recommended—they’ll point out the exact layer that marks the asteroid impact that killed the dinosaurs.

Yes, you can literally touch the end of the Cretaceous period here.

10. Cala des Moro, Mallorca

This postcard-perfect cove on Mallorca’s southeast coast features a natural rock archway that frames the turquoise water like a painting.

The beach itself is tiny—maybe 30 meters of sand wedged between towering limestone cliffs—but the setting is absolutely spectacular.

To reach it, you’ll need to descend a steep, rocky path from the car park, which keeps the crowds manageable despite the beach’s Instagram fame.

The arch is best appreciated from the water, so bring your snorkel gear and swim out for a closer look at the formations and the abundant marine life that gathers around the rocks.

Because the cove is so sheltered, the water is typically calm and crystal-clear—perfect for swimming and floating while you take in the dramatic geology.

Arrive early in summer, as this small beach fills up quickly once word spread about its natural beauty.

And remember: every time you swim through a sea arch, you’re experiencing something that won’t exist forever.

The sea made these formations, and eventually, the sea will take them back.