Nestled between Altea and Jalón, Sierra Bernia is one of the most impressive natural landmarks in the Costa Blanca — and still relatively under the radar for many travelers. This rugged mountain range offers dramatic hiking trails, jaw-dropping views, and a chance to connect with the untamed side of the region, far away from beaches and bustling promenades.
Whether you’re an experienced hiker or a curious explorer, Sierra Bernia offers an unforgettable escape into nature, history, and scenic beauty.
🥾 What is Sierra Bernia?
The Sierra de Bèrnia is a limestone mountain range that stretches over 10 kilometers inland from Altea, rising up to 1,128 meters above sea level. It serves as a natural divider between Marina Alta and Marina Baixa and offers spectacular views over both the Mediterranean Sea and inland valleys.
More than just a mountain, it’s a symbol of Costa Blanca’s wild heart — full of walking routes, caves, fort ruins, and rare wildlife.
📍 Getting To Sierra Bernia
To explore Sierra Bernia, the most popular access point is through Altea la Vella, following signs toward Cases de Bèrnia or Font de la Barca. A small mountain road leads you uphill to a parking area near the start of the main hiking route.
🚗 Tip: The road is narrow and curvy — drive with care, and avoid rainy days.
🥾 Main Hiking Route: Circular Trail with El Forat
The most iconic hike in Sierra Bernia is a circular route (approx. 9 km) that includes:
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El Forat – a natural tunnel that cuts through the mountain ridge. On the other side, you’re greeted with a stunning view of Calpe, the Peñón de Ifach, and the coastline.
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Fort de Bèrnia – the ruins of a 16th-century military fort built by Philip II to defend against local uprisings and pirate attacks.
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Panoramic Views – sweeping 360º landscapes of the Mediterranean, Sierra Helada, Puig Campana, and inland valleys.
🕒 Duration: 3 to 4 hours
📈 Difficulty: Moderate – some rocky paths and slight scrambling
🥤 Bring: Water, sun protection, good shoes, and snacks
🌿 Nature & Wildlife
Sierra Bernia is a haven for native flora and fauna. You’ll spot:
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Wild rosemary, thyme, and flowering herbs
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Eagles, kestrels, and vultures circling above
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Goats and foxes hidden among the cliffs
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Rare orchids and small reptiles during spring
It’s also one of the best places for birdwatching and botanical photography on the Costa Blanca.
👉 Link: Wildlife on the Costa Blanca
🏰 Fort de Bèrnia: A Ruin with a View
Built in 1562, the Fort de Bèrnia once served as a royal outpost to control the rebellious Moors and defend the coast from pirates. While much of it is now in ruins, the layout is still visible, and the spot offers incredible panoramic views.
There are information panels onsite that explain its historical role — but even without the history, it’s worth it for the quiet, elevated setting.
🧘♂️ Why Locals Love It
For many people living in Altea and the surrounding towns, Sierra Bernia is where they come to disconnect. Whether it’s for a full hike or a short picnic with views, this mountain range offers a peaceful, grounding energy.
It’s common to see yoga groups, solo walkers, or local hiking clubs here during the weekends — it’s that kind of place.
✅ Editor’s Conclusion
Sierra Bernia is the kind of place that makes you stop, breathe, and fall in love with the land. From rocky ridges to hidden tunnels, medieval ruins to Mediterranean views, it’s a Costa Blanca gem that deserves more attention — yet stays blissfully untouched.
If you’re staying in Altea or nearby, don’t miss the chance to experience this mountain up close. It may just become your favorite memory from the entire trip.
❓Frequently Asked Questions
How long does the Sierra Bernia hike take?
The full circular route takes 3 to 4 hours, depending on pace and stops.
Is the hike suitable for beginners?
It’s moderate. Not technically difficult, but does require good footwear, basic fitness, and comfort with rocky terrain.
Can kids do the hike?
Older kids with hiking experience will enjoy it, but El Forat and the ridge paths may be challenging for younger ones.
Are there facilities or cafés nearby?
No — this is pure nature. Bring water, snacks, and good gear.
Is the trail marked?
Yes, it’s generally well-marked, especially if starting from the Cases de Bèrnia trailhead.
