4.0
(1)
29
riders
04:26
86.5km
1,340m
Road cycling
This difficult 53.8-mile circular road cycling route through Cantabria connects Ajo, San Miguel de Meruela, Ampuero, and the Marismas de San
Last updated: February 26, 2026
Waypoints
Start point
Parking
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5.37 km
Highlight (Segment) • Cycleway
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Tip by
23.3 km
Highlight • Mountain Pass
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Tip by
50.1 km
Highlight • Climb
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Tip by
61.6 km
Highlight • Natural
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Tip by
65.2 km
Highlight • Viewpoint
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Tip by
86.5 km
End point
Parking
Way Types & Surfaces
Way Types
66.0 km
15.3 km
3.35 km
1.82 km
< 100 m
Surfaces
76.2 km
9.79 km
403 m
164 m
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Elevation
Highest point (430 m)
Lowest point (undefined)
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Weather
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Wednesday 8 July
27°C
19°C
0 %
Additional weather tips
Max wind speed: 17.0 km/h
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This route was planned by komoot.
This challenging racebike route, covering over 86 kilometers with significant elevation gain, typically takes around 4 hours and 25 minutes of active cycling time. However, plan for a longer overall duration to account for stops, breaks, and enjoying the scenic views.
The route offers a highly varied terrain. You'll experience coastal roads around Ajo and the Santoña Marshes, which can be easy and scenic but may include the challenging 'Alto de Ajo' climb. Inland sections towards San Miguel de Meruelo and Ampuero feature undulating hills and valleys, with Ampuero offering significant climbs like the Ampuero Climb. While generally well-maintained, some segments might have variable conditions.
Given its 'difficult' classification, significant distance (over 86 km), and substantial elevation gain (over 1300m), this specific circular route is not recommended for beginner road cyclists. It combines challenging climbs with long distances, making it more suitable for experienced riders looking for a demanding ride.
You'll enjoy diverse scenery, from stunning coastal views around Ajo and the unique marshlands of the Santoña Marshes, rich in birdlife. Key highlights include the picturesque Tree-Lined Road in San Miguel de Meruelo, the strategic Campo La Cruz, and the challenging Ampuero Climb. Don't miss the panoramic Marshes Viewpoint for breathtaking vistas.
The best time to cycle this route is generally during spring or autumn. These seasons offer pleasant temperatures and less traffic than the peak summer months. Spring also brings lush green landscapes and opportunities for birdwatching in the marshes. While summer is an option, be prepared for potentially higher temperatures and increased coastal traffic. Winter can be cold, and some higher sections might even see snow.
While there isn't one designated 'official' starting point with specific parking information provided, Ajo is the initial named location on the route. You can typically find public parking in the towns and villages along the route, such as Ajo or Ampuero. It's advisable to check local parking regulations upon arrival, especially during peak seasons.
No, there are generally no permits or entrance fees required to cycle this route or to access the public areas of the Parque Natural de las Marismas de Santoña, Victoria y Joyel. However, always respect local regulations, especially concerning protected natural areas, and ensure you stay on designated roads and paths.
While dogs are generally welcome in many outdoor areas, this is a road cycling route, and specific dog-friendly amenities or rules are not typically applicable. If you plan to bring a dog, ensure they are safely secured (e.g., in a trailer) and that you adhere to any local leash laws or regulations, especially when passing through towns or protected natural areas like the Marismas de Santoña.
Yes, sections of this route intersect with or run alongside several other paths. You may find yourself on parts of the Senda del Litoral, the Northern Route (Cantabria), or the Sendero peatonal de La Aparecida. Other smaller paths like the Camino al castillo de Montehano and Sendero de acceso al Molino de Santa Olaja also briefly connect.
Yes, as the route passes through several towns and villages like Ajo, San Miguel de Meruelo, and Ampuero, you will find opportunities for refreshments. These areas typically offer cafes, bars, and restaurants. For accommodation, you would need to plan ahead and book in one of these towns if you intend to break the journey into multiple days.
The Santoña Marshes (Marismas de Santoña, Victoria y Joyel Natural Park) are a significant ecological area, particularly renowned for their birdlife. During migratory seasons, you can expect to see a wide variety of waterfowl and wading birds. Inland, you might spot common Cantabrian wildlife, but the marshes are the primary spot for wildlife observation.
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