4.5
(5446)
43,304
hikers
101
hikes
Hiking trails around Aiako Harria Parke Naturala traverse the Pyrenean foothills, characterized by the majestic Aiako Harria massif with its three prominent granite peaks: Irumugarrieta (806 m), Txurrumurru (821 m), and Erroilbide (843 m). The landscape features diverse terrains, including dense oak and beech woods, rugged gorges, and steep cliffs. Hikers can also explore areas around the Añarbe reservoir and follow streams like the Aitzondo and Endara.
Last updated: May 10, 2026
4.7
(69)
625
hikers
7.47km
03:12
410m
410m
Hike the difficult 4.6-mile Peñas de Aia circular route, gaining 1339 feet over four peaks in Aiako Harria Natural Park.
4.5
(26)
83
hikers
7.41km
02:22
310m
320m
Hike the moderate 4.6-mile (7.4 km) Minas de Arditurri (PR-GI 1009) loop in Aiako Harria Natural Park, exploring ancient mines and diverse l

Sign up for free
4.6
(14)
67
hikers
10.6km
03:11
350m
350m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
4.7
(13)
44
hikers
9.74km
03:27
360m
370m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
4.5
(10)
41
hikers
12.5km
04:14
450m
440m
Hike the moderate 7.8-mile (12.5 km) circular route around the San Antón Reservoir from Erlaitz, passing through a beautiful Larch Forest.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
Popular around Aiako Harria Parke Naturala
Between the sea and the mountains — GR 121: Tour of Guipúzcoa
Road Cycling Routes around Aiako Harria Parke Naturala
Cycling around Aiako Harria Parke Naturala
Running Trails around Aiako Harria Parke Naturala
MTB Trails around Aiako Harria Parke Naturala

Gravel biking around Aiako Harria Parke Naturala

Mountain Hikes around Aiako Harria Parke Naturala
Caution! Approaching Irumugarrieta Peak from the south, you have to climb a serious, vertical wall. Unfortunately, with a dog, we had to give up here and fought our way down cross-country through the undergrowth. The other way around, it probably won't work with a dog even without abseiling. The tour is still very beautiful, but I wouldn't do the special descent again.
1
0
Near the end of the stream section, the concrete blocks covering the stream are as of September 2025 completely missing, leaving you two options forward: 1) walk on a 20cm wide path right next to a big cliff, 2) walk inside of the stream bed, knee-deep in water. We decided to turn back because it did not seem safe for us. Caution recommended!
1
0
Difficult Route NOT suitable for children. There are areas that require climbing. Skip this route on days when the terrain may be wet (rain, snow, both on that day and in the days prior).
0
0
The final few meters of the ascent and descent are quite exposed in places and are not secured with ropes. Experienced climbers are recommended.
0
0
People suffering from vertigo should avoid... It's not wide at all in places.
0
0
Signposted junction of beautiful hiking trails leading to San Antón and Erlaitz. Green and dense forests on the eastern slope of the Aiako Harria massif. Where are you going?
1
0
Beautiful hiking route claiming the Endara Valley surrounded by dense forests and streams on the eastern slope of the Aiako Harria massif.
1
0
There are over 100 hiking trails in Aiako Harria Parke Naturala, offering a wide range of options for different skill levels and interests. The komoot community has explored these routes over 9,700 times.
Hikers in Aiako Harria Parke Naturala will encounter diverse terrain, from the majestic granite peaks of the Aiako Harria massif (Irumugarrieta, Txurrumurru, and Erroilbide) to dense oak and beech woods. You'll also find rugged gorges, steep cliffs, and picturesque areas around the Añarbe reservoir and along streams like the Aitzondo and Endara.
Yes, Aiako Harria Parke Naturala offers several easier routes suitable for families. While the park is known for its challenging peaks, there are 16 easy trails available. These often traverse less strenuous paths through the woods or along the reservoir, providing a pleasant experience for all ages.
Aiako Harria Parke Naturala is generally dog-friendly, with many trails suitable for hiking with your canine companion. However, it's always recommended to keep dogs on a leash, especially in areas with wildlife or near livestock, and to check for any specific local regulations on individual trails.
Yes, the park features several excellent circular routes. One popular option is the Túneles de Meazuri — circular por Pagogaña, a moderate 10.6 km trail. Another is Basate y Munagirre — circular through Aiako Harria Natural Park, which offers varied landscapes over 9.7 km.
The park is rich in history. You can explore the ancient Arditurri Mining Complex, which dates back to Roman times, or discover prehistoric remains like cromlechs and dolmens. There are also historical military fortifications, such as the Erlaitz fort, due to the region's strategic location. The Arditurri Mines Trail specifically guides you through this industrial heritage.
Yes, the park is home to the impressive Aitzondo Waterfall, a 100-meter cascade along the Aitzondo stream. It's a beautiful natural feature that adds to the scenic beauty of the area and is a popular point of interest for hikers.
The area is highly rated by the komoot community, with an average score of 4.5 stars from over 1,100 reviews. Hikers often praise the stunning granite peaks, the diverse landscapes ranging from dense forests to rugged gorges, and the rich historical sites like the Arditurri Roman Mines. The variety of trails catering to different abilities is also frequently highlighted.
The Aiako Harria massif features three prominent granite peaks: Irumugarrieta Peak (811 m), Txurrumurru Summit (828 m), and Erroilbide Summit (837 m). These ancient geological formations offer challenging hikes and expansive views.
While specific public transport routes directly to all trailheads can vary, the park is accessible from nearby towns. It's advisable to check local bus schedules or regional transport options to plan your journey to the starting points of the trails. Parking facilities are also available at various access points for those traveling by car.
Aiako Harria Parke Naturala offers hiking opportunities throughout much of the year. Spring and autumn provide pleasant temperatures and vibrant scenery, with blooming flora or colorful foliage. Summer is also popular, though some routes can be more exposed. Winter hiking is possible, but higher elevations may require appropriate gear due to colder conditions and potential snow or ice.
While popular routes like the Aiako Harria Peaks Loop can see more visitors, the park's extensive network of over 100 trails means you can often find quieter paths. Exploring some of the moderate or easy trails that venture deeper into the oak and beech woods, or those around the Añarbe reservoir, can offer a more serene experience away from the main peaks.


Browse the best Hikes in other regions.