Best natural monuments around Oleiros include the Dexo-Serantes Coast Natural Monument, a significant protected area known for its ecological and geomorphological value. This 11 km stretch of coastline features unique ecosystems, diverse habitats, and impressive geological formations. It is recognized as a Natural Monument and is part of the Natura 2000 network. The area offers opportunities to observe native birds and plants, explore sea caves, and experience rugged coastal landscapes.
Last updated: July 1, 2026
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A beautifully designed compass rose below the lighthouse.
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The compass rose next to the Torre de Hercules lighthouse.
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The ramp to the tower is a bit bumpy. If you drive in the middle, you'll be on smooth, continuous slabs. But definitely drive up. The view is magnificent. There may be public toilets open at the foot of the lighthouse.
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Temporarily closed. October 26, 2024
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The garden of San Carlos was built as a defensive castle outside the walls in the 14th century and was joined to the city in the 16th century. Little by little it lost importance as a bastion or "old fortress" and, after the gunpowder magazine it contained exploded, it was abandoned until it was recovered as a garden in the 18th century by Carlos F. de Croix.
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The garden was built in the 14th century as a defensive castle outside the wall, and was connected to the city in the 16th century. Is worth a visit
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Let's hope there is peace. Ever… Nice to visit.
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The most significant natural monument in the Oleiros region is the Dexo-Serantes Coast Natural Monument. This 11 km stretch of coastline is recognized for its unique ecosystems, diverse habitats, and impressive geological formations, extending from the Mera Lighthouse to Lorbé Port.
The Dexo-Serantes Coast Natural Monument offers breathtaking coastal scenery with rugged cliffs and unique geological formations like sea caves (Ollo Pequeno, A Regocha, Ollo Grande) and rock formations such as Seixo Branco and A Marola. It's also rich in biodiversity, hosting the largest shag colony in the Spanish Peninsula, alpine swifts, northern gannets during migration, and Mediterranean gulls and ruddy turnstones in winter.
Yes, the Dexo-Serantes Coast Natural Monument features several hiking routes. You can explore the Seixo Branco-Furnas Route (3.6 km, medium difficulty), the Porto de Dexo Route (4.1 km, easier), or the short and easy Mera Lighthouses Route (1.5 km).
Beyond hiking within the Dexo-Serantes Coast, the clear and calm waters of nearby Mera Beach are ideal for kayaking, allowing you to discover coastal caves. For more extensive outdoor activities, you can explore various running trails, gravel biking routes, and MTB trails around Oleiros.
Yes, several spots are suitable for families. The Mera Lighthouses Route within the Dexo-Serantes Coast is short and easy. Additionally, highlights like Compass Rose at the Tower of Hercules, Menhirs for Peace, and Tower of Hercules are listed as family-friendly. The Mero River Trail is also a simple, flat walk along the river, perfect for families.
The region blends natural beauty with historical significance. The Tower of Hercules, an ancient lighthouse, offers panoramic views and is a historical site. Nearby, the Compass Rose at the Tower of Hercules and Menhirs for Peace are man-made monuments with cultural significance, often considered within the broader context of natural landmarks due to their outdoor settings and integration with the landscape.
While specific seasonal recommendations aren't provided, the Dexo-Serantes Coast Natural Monument is ideal for outdoor activities like hiking and birdwatching. Visiting during milder weather, typically spring or autumn, would offer comfortable conditions for exploring the trails and observing wildlife without extreme heat or heavy rainfall.
To preserve this fragile environment, visitors are encouraged to stay on marked paths, avoid littering, and refrain from disturbing plants or animals. The use of 4x4 vehicles, motorcycling, and drones is prohibited to protect the natural integrity of the area.
For stunning views, visit the Tower of Hercules, which offers panoramic vistas of the sea, coast, and La Coruña from its 55-meter height. The Compass Rose at the Tower of Hercules also provides an interesting perspective at the foot of the lighthouse.
Visitors appreciate the diverse natural monuments, from rugged coastlines to protected river ecosystems. Highlights like the Menhirs for Peace are noted for their symbolic meaning and peaceful setting, while the Tower of Hercules is loved for its historical significance and incredible views. The Mero River Trail is enjoyed for its easy, flat walk along the river.
Yes, the Aula do Mar Information Centre is located near the Mera Lighthouses, offering visitors more insights into the natural monument and its conservation efforts.
Yes, the Dexo-Serantes Coast Natural Monument is part of the Galician Network of Protected Natural Spaces, the Natura 2000 network as a Special Area of Conservation (SAC), and a main area within the Biosphere Reserve of the Mariñas Coruñesas e Terras do Mandeo. Additionally, the Mero River, which forms the Cecebre reservoir, is a protected natural space with the figure of LIC (Place of Community Importance) of the Natura 2000 Network.


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