4.3
(127)
1,265
hikers
126
hikes
Hiking in Marismas Del Odiel offers exploration of a unique estuarine system where the Tinto and Odiel rivers meet, creating extensive tidal marshes. The region features a diverse landscape of islands, lagoons, and coastal areas, alongside wooded sections. Its generally flat terrain makes it accessible for various hiking abilities, providing opportunities to observe abundant wildlife. This UNESCO Biosphere Reserve is characterized by its dynamic interplay of fresh and saltwater environments.
Last updated: May 28, 2026
4.6
(8)
20
hikers
13.6km
03:26
20m
20m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.3
(3)
14
hikers
10.5km
02:38
20m
20m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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3.0
(1)
14
hikers
6.37km
01:38
20m
20m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.3
(3)
12
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
10
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Good route, but it needs some fine-tuning. Try optimizing it another day.
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This natural area covers approximately 7,185 hectares and is known for its rich biodiversity and its importance as a breeding area and refuge for numerous bird species. Notable species include the Eurasian spoonbill, the flamingo, various ducks, grey and purple herons, and birds of prey such as the osprey. The area also has an interpretation center, birdwatching points, trails, and rest areas.
4
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This area is known for its focus on aquaculture and environmental tourism. The salt flats were built in the 1920s by Antonio Sánchez Allende-Valledor. Today, the Salinas del Astur offer a variety of activities such as safe recreational fishing, hiking, birdwatching, and photography. You can also enjoy canoeing and observe a wide variety of birds in the Marismas del Odiel Natural Park.
4
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A freshwater lagoon, which preserves a high population of waterfowl and is one of the fundamental wetlands for the survival of birds that migrate to the Peninsula. The lagoon is surrounded by castanets, cattails and reeds.
3
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It is a natural area (wetland) located at the mouth of the Odiel river or Huelva estuary. It constitutes one of the largest extensions of marshes in Spain. There are several trails and bike routes that allow you to observe nature (for example, the flamingo, the spoonbill, the heron and the osprey).
2
1
Protected under the figure of the Natura 2000 Network, this unique and special place is an estuary and biosphere reserve located at the mouth of the Ría de Huelva. Its diversity in flora and fauna as well as the great ecological richness of this place make it a unique site worth visiting for all. In addition, its landscape environment makes it a panoramic window towards the interior and the Huelva beaches.
3
1
Attention: at the time of the hike (September 29th, 2022) the Salinas were unfortunately closed (it’s best to check the relevant website beforehand)
2
0
The El Portil lagoon constitutes one of the most representative Huelva coastal wetlands and is in the best state of conservation, housing a community of fish of great interest. It is a practically circular route around the Laguna del Portil. It begins at the viewpoint located next to the coastal road HV-4112 from where it penetrates into the pine forest that surrounds the lagoon.
12
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Marismas del Odiel offers a wide selection of hiking opportunities, with over 130 trails recorded on komoot. These range from easy strolls to more moderate routes, ensuring options for various fitness levels.
The terrain in Marismas del Odiel is predominantly flat, characterized by extensive tidal marshes, intertwined waterways, and lagoons. You'll also find coastal features like beaches and wooded areas such as El Almendral. This flatness makes for easy walking and excellent wildlife observation.
Yes, Marismas del Odiel is very accommodating for beginners and those looking for easy walks. Over 60 of the trails are rated as easy, with routes like the Under the Pines – El Portil Lagoon loop from El Portil offering a gentle experience through pine forests and past lagoons.
Marismas del Odiel is a haven for wildlife, especially birds. You can expect to see thousands of flamingos, particularly in winter, along with spoonbills, herons, waders, and ospreys. The area is also home to one of Southern Europe's largest chameleon colonies, and occasionally, lynx can be spotted in the wooded sections.
Absolutely. Marismas del Odiel is a crucial stopover point for thousands of migratory birds, making it an exceptional birdwatching destination. Over 250 species have been observed here, including significant populations of flamingos, spoonbills, and ospreys. There are numerous observatories and viewpoints along the trails specifically designed for birdwatching.
The best time to hike in Marismas del Odiel is generally during the cooler months, from autumn to spring. This period offers pleasant temperatures for walking and coincides with the arrival of thousands of migratory birds, including flamingos, making it ideal for wildlife spotting.
Yes, the generally flat terrain and numerous easy trails make Marismas del Odiel very suitable for families. Many routes offer accessible paths and opportunities for children to observe nature and wildlife. The Under the Pines – El Portil Lagoon loop from El Portil is a great example of a shorter, easy route.
While many trails are flat, specific accessibility for wheelchairs or strollers can vary. The Visitor Center (Centro de Visitantes Calatilla) is a good starting point, and some of the wider, well-maintained paths may be suitable. It's advisable to check specific route details for surface conditions if full accessibility is required.
Along the trails, you can discover several points of interest. The Old Astur Saltworks offer a glimpse into the region's history, while the Odiel Marshes themselves are a natural spectacle. You might also encounter the Greenway Huelva - Punta Umbría or the historic Tharsis Pier.
Parking is generally available at key access points and visitor centers within Marismas del Odiel. The Centro de Visitantes Calatilla (also known as Anastasio Senra) is a primary starting point and offers facilities including parking. Specific trailheads may also have designated parking areas.
The area is highly rated by the komoot community, with an average score of 4.3 stars from over 120 reviews. Reviewers often praise the unique estuarine landscape, the abundance of birdlife, and the tranquil, flat paths that make for relaxing and immersive nature experiences.
Yes, there are several circular hiking routes available. For example, the Old Astur Saltworks – Punta Umbría loop from Punta Umbría offers a moderate 10.5 km path through the estuarine landscape, perfect for birdwatching. Another option is the Bridge – Corrales loop from Campo Municipal de fútbol San Andrés.


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