Katillotxu: A Look into the Megalithic Past Trail

This trail is generally considered of moderate difficulty. While much of the route is manageable, be prepared for a sustained and rather steep climb (pronunciada cuesta) as you ascend to the summit of Katillotxu. The total elevation gain is around 324 meters.

The hike covers a distance of approximately 9.7 kilometers. Most hikers complete the circular route in about 2 to 3 hours, depending on their pace and how long they spend exploring the sights.

You can start this circular route from either Mundaka or Sukarrieta. Both towns offer parking options. In Mundaka, look for parking near the harbor or the town center. In Sukarrieta, parking is available, particularly closer to the coastal areas. The trail is well-marked with PR-BI 176 signs, making it easy to find the trailhead from either location.

The trail is rich in natural beauty and historical sites. You'll encounter the significant Katillotxu Dolmen, an ancient megalithic complex. Other highlights include the picturesque Santa Catalina Hermitage and Mundaka Harbor, stunning views from Arribieta, and the Urdaibai Biosphere Reserve trail junction signpost. You'll also pass traditional Basque farmhouses, an eucalyptus forest, and the 16th-century Munitiz tower house.

Prepare for extraordinary panoramic views of the Urdaibai estuary, a UNESCO Biosphere Reserve. From various vantage points, you can admire landmarks like Laida beach, the iconic Ogoño rock, and the peak of Atxarre, all framed by lush holm oak forests and the Cantabrian Sea.

Yes, dogs are generally allowed on this trail within the Urdaibai Biosphere Reserve. However, it's always best to keep your dog on a leash, especially in areas with livestock or near archaeological sites like the dolmens, and to follow all local regulations regarding pet waste and control.

The trail can be enjoyed year-round, but spring and autumn offer the most pleasant hiking conditions with mild temperatures and vibrant scenery. Summer can be warm, so an early start is advisable. Winter hikes are possible, but be mindful of potentially wetter and muddier sections.

No, there are no specific permits or entrance fees required to hike this trail or access the general areas of the Urdaibai Biosphere Reserve. However, always respect the natural environment, stay on marked paths, and follow any posted regulations to help preserve this protected area.

Yes, this route primarily follows the well-marked PR-BI 176 trail. It also intersects with sections of the GR 38 and other local paths such as Katillotxu. Begirada bat iragan megalitikoari, Bizkaiko bira, and Santa Kataliña kalea, offering possibilities for longer or alternative explorations.

Yes, both Mundaka and Sukarrieta are accessible by public transport, making it easy to reach the trailheads. You can typically find train or bus connections from larger cities like Bilbao to these coastal towns, allowing for a convenient start to your hike.

Absolutely! Both Mundaka and Sukarrieta are charming coastal towns with various options for refreshments and meals. In Mundaka, you'll find cafes and restaurants, especially near the harbor. Sukarrieta also offers places to eat and pubs, perfect for a post-hike treat.

Given the moderate difficulty and varied terrain, we recommend bringing sturdy hiking shoes, water, snacks, sun protection (hat, sunscreen), and layers of clothing suitable for changing weather conditions. A camera is also a great idea to capture the stunning views.