Best lakes around Arraia-Maeztu are found within a region characterized by its natural landscape, particularly the Izki Natural Park. While expansive lakes are not common, the area features significant natural water formations including rivers, streams, waterfalls, and wetlands. These Arraia-Maeztu natural features contribute to the ecological value and offer various visiting opportunities. The Izki Natural Park contains small rivers and wetlands with ponds and incipient peat bogs.
Last updated: May 7, 2026
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Irrigation pond in the mountains between Otazu and Mendiola, easy to get to and incredible views.
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These are small water storage ponds for agricultural use. Its presence at the foot of the forest gives the landscape an even more spectacular picture.
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I went in July 2023. This cave is completely closed. There are signs from the Basque government saying DO NOT ENTER (and explaining the consequences and the work they're doing) and plastic tape blocking the entrance. There are lots of constructions tools around too. Don't expect to get in unless you're willing to destroy the small stone wall and all the tape blocking the entrance.
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Through the Vasco Navarro greenway you cross cultivated areas, irrigation ponds, old buildings that were stations on this route. The landscape changes as we approach the mountainous area, in the Laminoria area. Since you cannot continue through the tunnel (it is closed), it is advisable to access the quarries by road and continue along a gravel road until you reconnect with the greenway in the area around the Ermita de Santo Toribio.
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This lagoon looks obviously man-made and has a strange color, but it is actually pretty. It also has a nice trail that goes around it.
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Within the Urbasa-Andia Natural Park is this wonderful place with an interesting history related to its name. In addition to being one of the most spectacular caves in the area, its name dates back to the Carlist era in which it is said that General Zumalacarregui threw the shot soldiers of the other side, who were known as Cristinos or Isabelinos. Before going to the place, I recommend that you check on the official website if access is open, a while ago it was closed due to COVID (http://cuevacristinos.com/)
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The most notable natural lake in the region is the Laguna de Olandina. This small but environmentally significant wetland is unique for its diapiric origin and is the only place in the Basque Country where the white water lily (Nymphaea alba) can be observed. It's an ideal spot for nature observation.
Yes, several spots are suitable for families. The Irrigation Reservoirs by the Vasco Navarro Greenway offer a pleasant experience along a greenway, passing cultivated areas and old railway stations. The Aberasturi Reservoir and BalsaHijona are also family-friendly irrigation ponds that provide scenic views, especially at dusk.
The area around Arraia-Maeztu offers various outdoor activities. You can explore numerous running trails, enjoy gravel biking, or embark on mountain hikes. Many of these routes pass by or near the region's water features, offering diverse landscapes.
Yes, for an easy walk, consider the 4.7 km route around the Laguna de Olandina, which takes about 1 hour and 30 minutes and starts from Apellániz. The Laguna de Otazu also features a nice trail that goes around it, suitable for an easy ride or walk.
Yes, the Cueva de Los Cristinos is a spectacular cave featuring a lake and underground streams. It's known for its impressive formations and has an interesting history. Remember to bring a good flashlight or headlamp for exploration.
The best time to visit depends on your interest. For observing the unique white water lilies at Laguna de Olandina, visit during their flowering season. Generally, spring and autumn offer pleasant temperatures for outdoor activities and enjoying the natural beauty of the region.
The wetlands and lakes, especially Laguna de Olandina and those within Izki Natural Park, are rich in biodiversity. You might spot amphibians like the spotted parsley frog and agile frog. The Izki Natural Park wetlands are also crucial habitats for birds such as the little grebe and great crested grebe, making them excellent for birdwatching.
Yes, the Izki Natural Park, which covers a significant portion of Arraia-Maeztu, features extensive wetlands. These include ponds, traps, and incipient peat bogs formed by rivers like the Izki, Molino, and Berrón. These areas are vital for diverse flora, including carnivorous plants, and provide habitats for amphibians and birds.
While some villages near the lakes might have limited public transport connections, direct access to many natural lake areas often requires a car. It's advisable to check local bus schedules for specific villages like Apellániz (for Laguna de Olandina) or Korres (for Izki Natural Park) and plan accordingly.
Parking is generally available in the nearby villages or designated areas close to trailheads for the lakes and natural parks. For instance, you can typically find parking in Apellániz when visiting Laguna de Olandina, or near the Izki Natural Park Interpretation Centre in Korres for exploring the park's wetlands.
Many of the natural trails and outdoor areas around the lakes in Arraia-Maeztu are dog-friendly, especially within the Izki Natural Park. Always keep your dog on a leash, especially in areas with wildlife, and ensure you clean up after them to preserve the natural environment.
The lakes and water features in Arraia-Maeztu, such as Laguna de Olandina and the various irrigation ponds, are primarily valued for their ecological importance and scenic beauty. Wild swimming is generally not recommended or permitted in these areas due to conservation efforts and potential safety concerns. It's best to enjoy them from the shore.


Still not found your perfect lake around Arraia-Maeztu? Check out the guides of these regions to see even more beautiful places.