Etangs Du Romelaëre is a National Nature Reserve located within the Audomarois marsh near Saint-Omer, France. This region is characterized by a distinctive wetland landscape, featuring a mosaic of ponds, reedbeds, wet meadows, and peat woods, all interconnected by an extensive network of canals. The unique terrain and rich biodiversity make Etangs Du Romelaëre an ideal setting for several outdoor activities like hiking, touring cycling, jogging, mountain biking, and more, offering opportunities for nature observation and tranquil exploration.
161
Routes
4.3
(611)
Average rating
4355
People visited

4.7
(117)
481
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

4.8
(12)
41
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

4.8
(59)
480
hikers
6.03km
01:32
10m
10m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

4.6
(24)
157
hikers
15.8km
04:04
70m
70m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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4.3
(31)
84
riders
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4.4
(24)
78
riders
32.8km
01:58
170m
170m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

34
riders
44.4km
03:09
270m
270m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4.3
(6)
23
riders
54.0km
03:04
70m
70m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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174
runners
12.8km
01:23
70m
70m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

53
runners
6.10km
00:38
20m
20m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

48
runners
9.92km
01:02
30m
30m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4.0
(1)
49
runners
13.8km
01:27
30m
30m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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4.5
(4)
45
riders
54.7km
04:20
600m
600m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

4.5
(16)
35
riders
32.6km
01:59
70m
70m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

4.4
(14)
30
riders
44.0km
02:39
120m
120m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

4.0
(2)
37
riders
44.6km
02:54
270m
270m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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53
riders
51.8km
02:17
440m
440m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

67
riders
42.7km
01:48
140m
140m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

20
riders
100km
05:39
1,200m
1,200m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

27
riders
61.8km
02:33
390m
390m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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5.0
(1)
9
riders
62.1km
04:31
760m
760m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

8
riders
54.2km
03:48
630m
630m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5
riders
58.5km
03:40
460m
460m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4.0
(2)
6
riders
22.2km
01:15
40m
40m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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Etangs Du Romelaëre is a National Nature Reserve located within the Audomarois marsh near Saint-Omer, France. It features a distinctive wetland landscape of ponds, reedbeds, wet meadows, and peat woods, interconnected by 700 kilometers of canals. The reserve is a protected UNESCO "Man and Biosphere" labeled site, recognized for its rich biodiversity.
Etangs Du Romelaëre offers opportunities for hiking, jogging, and nature observation within the reserve. The broader Audomarois marsh surrounding the reserve is also suitable for touring cycling, mountain biking, road cycling, and gravel biking. Visitors have shared more than 32,000 experiences, with activities rated an average of 4.46 out of 5 stars.
Yes, Etangs Du Romelaëre features several well-maintained hiking paths. Notable trails include the 2.5-mile (4 km) Cormorant Trail and the 1.7-mile (2.7 km) Blongios Trail. These trails provide immersive experiences through varied landscapes, with observatories for birdwatching. For more information, consult the Hiking around Etangs Du Romelaëre guide.
Yes, the 1.7-mile (2.7 km) Blongios Trail is suitable for families and accessible to people with reduced mobility. The reserve also features extensive boardwalks and hides for wildlife viewing. For easy options, refer to the Easy hikes around Etangs Du Romelaëre guide.
Bicycles are prohibited within the core National Nature Reserve to protect the fragile environment and wildlife. However, the broader Audomarois marsh region surrounding Etangs Du Romelaëre is conducive to touring cycling, mountain biking, road cycling, and gravel biking. GPX tracks for cycling routes are available for the surrounding area. Explore options with the Cycling around Etangs Du Romelaëre guide.
Etangs Du Romelaëre is a haven for wildlife, home to around 230 to 240 species of birds, including Bitterns, Little Bitterns, Marsh Harriers, and Kingfishers. The area also supports 17 different fish species, 70 species of beetles, and 70 species of butterflies. Observatories along the trails facilitate birdwatching.
The region is characterized by a mosaic of ponds, reedbeds, wet meadows, and peat woods, remnants of 19th-century peat extraction. These features are interwoven with "watergangs"—700 kilometers of canals—and numerous plots of land. The site spans approximately 247 acres (100 hectares), with 111 acres (45 hectares) of ponds.
Yes, komoot offers several guides for Etangs Du Romelaëre, covering various activities. These include Hiking around Etangs Du Romelaëre, Cycling around Etangs Du Romelaëre, and Running Trails around Etangs Du Romelaëre. Guides for MTB, road cycling, and gravel biking are also available.
Information regarding the Etangs Du Romelaëre National Nature Reserve can be found on the Eden 62 website. The Grange Nature, located in Clairmarais, serves as a visitor center, offering exhibitions and information. The Saint-Omer Tourist Office also provides local information.
The official website for the Etangs Du Romelaëre National Nature Reserve is http://eden62.fr/reserve-naturelle-nationale-des-etangs-du-romelaere/. For inquiries, the Grange Nature in Clairmarais can be reached at +33 3 21 38 52 95. The Saint-Omer Tourist Office can be contacted at +33 3 21 98 08 51.
The Grange Nature is a renovated barn located at the entrance of the Etangs Du Romelaëre reserve in Clairmarais. It functions as a visitor center, providing exhibitions, information, and guided tours. It helps visitors understand and appreciate the local natural heritage and the delicate ecological balance of the wetlands.

