First pick
Forêt de Marly-le-Roi
Wood or forest
2,109 ha194.8 km of path
43 h 15 minto walk all 194.8 km of path
3.4 km westfrom the center
Route HardouinRoute de la Grille MadameRoute Royale+5 paths
Directionsto a point inside
Photo: Henry Salomé · CC BY-SA 3.024%woodland
Outdoors in Mareil-Marly · protected areas, woods and footpaths
Mareil-Marly has more footpaths per km² than 8 in 10 French towns
Footpaths add up to 7 km across Mareil-Marly (3.8 km per km²). 24% of Mareil-Marly is mapped woodland. No protected area reaches Mareil-Marly; the nearest, Etangs et rigoles d’Yveline nature reserve, is 11 km from the town center. France has no Outdoors Grade yet: these are the figures, each beside the compared towns’ median.
Protected areas
0%
of the commune’s land
Nearest: Etangs et rigoles d’Yveline nature reserve, 11 km
Woodland
24%
of the land, mapped on OpenStreetMap
Compared town: 13%
Footpaths
6.7 km
3.8 km per km²
Compared town: 1.7 km per km²
Hiking routes
0 km
waymarked, GR and others
Compared town: 0.3 km per km²
Parks & woods
4
named, in or within 400 m of the commune
First: Forêt de Marly-le-Roi
Throughout this page, the Yvelines median and the France median are the median of compared communes (those with an overall grade), each figure its own median.
Against French towns
How Mareil-Marly compares with French towns
Each figure against the 3,798 compared French towns (communes with an overall grade): the marked bar is the town’s, the line the median. Described, not graded.
Protected areas0%Share of the land in a national park, regional nature park, nature reserve or Natura 2000 site
22out of 100
Woodland24%Share of the land mapped as forest or woods on OpenStreetMap
68out of 100
Footpaths3.8 km per km²Km of mapped footpath and track open on foot, per km² of the commune
82out of 100
Hiking routes0 km per km²Km of waymarked hiking routes (GR and others), per km² of the commune
12out of 100
Percentiles among compared French towns; ties count half.
Towns its size
Mareil-Marly has the 5th most footpaths per km² of 41 towns its size
The 40 compared French towns nearest in population (4,113 to 4,170 residents), by km of footpath per km². Hover for each one’s protected land and woods; click for its page.
From Chanteloup-en-Brie (6.5 km per km²) to Vieillevigne (0.2 km per km²).
Every town in the comparison
| Town | Paths (km/km²) | Woodland | Protected | Coast | |
|---|---|---|---|---|---|
| 1 | Chanteloup-en-Brie Seine-et-Marne | 6.5 | 24% | 0% | 166 km |
| 2 | Montferrier-sur-Lez Hérault | 5.3 | 33% | 8.3% | 16 km |
| 3 | Indre Loire-Atlantique | 4.7 | 7.9% | 41% | 30 km |
| 4 | Herserange Meurthe-et-Moselle | 3.9 | 47% | 0% | 276 km |
| 5 | Mareil-Marly Yvelines | 3.8 | 24% | 0% | 136 km |
| 6 | Thumeries Nord | 3.3 | 37% | 12% | 77 km |
| 7 | Le Plessis-Pâté Essonne | 3.2 | 4.8% | 0% | 170 km |
| 8 | Fouras Charente-Maritime | 2.8 | 2.8% | 43% | On it |
| 9 | Turckheim Haut-Rhin | 2.7 | 56% | 7.9% | 469 km |
| 10 | Neufchâtel-Hardelot Pas-de-Calais | 2.5 | 27% | 100% | On it |
| 11 | Aulnat Puy-de-Dôme | 2.1 | 0.1% | 0% | 258 km |
| 12 | Tourrettes-sur-Loup Alpes-Maritimes | 2.1 | 40% | 100% | 11 km |
| 13 | Aigrefeuille-sur-Maine Loire-Atlantique | 2 | 5.8% | 0% | 44 km |
| 14 | Monéteau Yonne | 1.9 | 37% | 0% | 293 km |
| 15 | Bouchain Nord | 1.8 | 18% | 0% | 105 km |
| 16 | Le Houlme Seine-Maritime | 1.7 | 37% | 0% | 44 km |
| 17 | Brie Charente | 1.5 | 35% | 19% | 86 km |
| 18 | Veigy-Foncenex Haute-Savoie | 1.5 | 38% | 0.3% | 293 km |
| 19 | Saint-Romain-le-Puy Loire | 1.4 | 16% | 17% | 222 km |
| 20 | Val d'Oingt Rhône | 1.3 | 20% | 0% | 266 km |
| 21 | Ghyvelde Nord | 1.3 | 0.2% | 6.9% | 3.7 km |
| 22 | Pont-de-l'Arche Eure | 1.2 | 72% | 1.4% | 59 km |
| 23 | Gondecourt Nord | 1.2 | 4.8% | 0% | 68 km |
| 24 | Sainte-Menehould Marne | 1.2 | 70% | 35% | 263 km |
| 25 | Nissan-lez-Enserune Hérault | 1.1 | 4.6% | 38% | 12 km |
| 26 | Chaingy Loiret | 1 | 21% | 2.3% | 202 km |
| 27 | La Destrousse Bouches-du-Rhône | 0.9 | 11% | 6.2% | 19 km |
| 28 | Condé-sur-Vire Manche | 0.9 | 3.4% | 0% | 33 km |
| 29 | Domfront en Poiraie Orne | 0.9 | 13% | 100% | 52 km |
| 30 | Arsac Gironde | 0.9 | 59% | 100% | 6.4 km |
| 31 | Hérin Nord | 0.9 | 1% | 99% | 103 km |
| 32 | Neuilly-en-Thelle Oise | 0.8 | 7.9% | 0% | 114 km |
| 33 | Saint-Lubin-des-Joncherets Eure-et-Loir | 0.7 | 19% | 0% | 97 km |
| 34 | Anneyron Drôme | 0.6 | 14% | 0% | 201 km |
| 35 | Pusignan Rhône | 0.6 | 2.9% | 0% | 256 km |
| 36 | Saint-Florentin Yonne | 0.6 | 10% | 0% | 284 km |
| 37 | Pézilla-la-Rivière Pyrénées-Orientales | 0.5 | 1.8% | 0% | 22 km |
| 38 | Sées Orne | 0.3 | 5.5% | 100% | 79 km |
| 39 | Solesmes Nord | 0.3 | 0.7% | 0% | 121 km |
| 40 | Courpière Puy-de-Dôme | 0.2 | 36% | 100% | 248 km |
| 41 | Vieillevigne Loire-Atlantique | 0.2 | 4% | 0% | 42 km |
The map
Parks, woods, footpaths & countryside
Tap a number to zoom to a park or wood. Tap a layer to hide it. The dashed line is the commune’s boundary.
Green: parks, gardens and woods mapped on OpenStreetMap, named or not.© OpenStreetMap contributors · INPN / PatriNat · IGN
Places to walk
Parks and woods to walk in, in and around Mareil-Marly
Named parks, gardens and woods in the commune or within 400 m, the biggest and best-pathed first: Forêt de Marly-le-Roi leads, at 2,109 ha. Directions go to a point inside.
Parc des Coteaux
Park or garden · 290 m outside the commune
1.3 ha0.2 km of path
0.9 km southfrom the center
Directionsto a point inside
Parc Fonton
Park or garden · 390 m outside the commune
0.5 ha0.1 km of path
1.3 km southfrom the center
Allée de la Niche
Directionsto a point inside
Jardin de Feuillancourt
Park or garden · 90 m outside the commune
0.6 ha
1.2 km north-eastfrom the center
Directionsto a point inside
Source: © OpenStreetMap contributors (ODbL): named parks, gardens and woods; sizes are the whole site.
Protected areas
Etangs et rigoles d’Yveline nature reserve is the nearest protected area, 11 km away
The protected areas reaching the commune, and the nearest: national parks, regional nature parks, nature reserves and Natura 2000 sites.
Nature reserve
Etangs et rigoles d’Yveline nature reserve
11 km from the town center
Share of the commune’s land
Any protected area0%
Designations overlap (a regional park can hold a Natura 2000 site), so the rows don’t add up; the first counts each piece of land once.
Source: INPN / PatriNat, protected areas July 2026, Natura 2000 December 2024; shares of IGN’s commune boundary.
Footpaths and woods
Footpaths and woods in Mareil-Marly
Paths, bridleways, steps and tracks open on foot, and waymarked hiking routes, mapped on OpenStreetMap inside the commune; woods are mapped forest and woodland, private woods included.
Footpaths
6.7 km
3.8 km per km²
Hiking routes
0 km
waymarked: 0 km per km²
Woodland
24%
about 0.4 km² of mapped woods
Km per km² of the commune · mapped on OpenStreetMap
Mareil-MarlyYvelines medianFrance median
Footpaths3.8
Hiking routes0
02.55 km per km²
Share of the land · mapped woods and forest
Mareil-MarlyYvelines medianFrance median
Woodland24%
0%50%100%
That is more than in 82% of compared French towns for footpaths per km², and for woodland more than in 68% of compared French towns. Hiking routes often follow paths and lanes already counted, so the two lengths overlap: don’t add them. Every home in Mareil-Marly is within 800 m of a mapped park or wood, as in most French towns.
4 named hiking routes within 2 km
GR (long-distance)PR (local walk)Other named walk
GR 22.4 km
PR 743.2 km
Chemin des Impressionnistes au Port-Marly1.6 km
Accès tour de Paris0.7 km
GR 2 passes within 2 km of Mareil-Marly.
Source: © OpenStreetMap contributors (ODbL), extracts of October 25, 2026 (Geofabrik).
When to get out
The best walking months in Mareil-Marly: April to September
Météo-France’s 1991–2020 normals at Trappes, 13 km away, and the daylight at the town’s latitude. Outlined months have long days, highs of 15 to 30 °C and little rain for the place.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 8.7 | 10.1 | 11.7 | 13.6 | 15.3 | 16.2 | 15.8 | 14.4 | 12.5 | 10.7 | 9.1 | 8.3 |
| High (°C) | 7 | 8 | 12 | 15 | 19 | 22 | 25 | 25 | 21 | 16 | 10 | 7 |
| Rain (mm) | 56 | 50 | 50 | 50 | 66 | 57 | 56 | 56 | 50 | 62 | 61 | 72 |
September is the driest month (50 mm) and July the warmest (highs of 25 °C). 72 mm of rain falls in December, the wettest month. Frost comes on about 39 nights a year. The climate in Mareil-Marly →
Neighbors
Next to Mareil-Marly
The nearest towns of 2,500 or more, colored by the share of their land in protected areas.
Marly-le-RoiL'Étang-la-VilleSaint-Germain-en-LayeLe PecqLe Port-MarlyLouveciennesMareil-Marly
Under 1%1–10 %10–25 %25–50 %50 %+
| Town | Protected | Woodland | Paths (km/km²) |
|---|---|---|---|
| Mareil-Marly | 0% | 24% | 3.8 |
| Marly-le-Roi 16,756 · 1.3 km | 0% | 37% | 7.6 |
| L'Étang-la-Ville 5,157 · 1.6 km | 0% | 62% | 8.8 |
| Saint-Germain-en-Laye 45,931 · 1.8 km | 0% | 68% | 6.8 |
| Le Pecq 16,059 · 2.2 km | 0% | 2.7% | 7.1 |
| Le Port-Marly 5,559 · 2.3 km | 0% | 13% | 5.9 |
| Louveciennes 7,990 · 3.6 km | 0% | 31% | 3.3 |
Marly-le-Roi, L'Étang-la-Ville and Saint-Germain-en-Laye are more wooded.
How to read these numbers
What this data can and can’t tell you
- Protected areas. National-park cores, national parks’ outer areas, regional nature parks, nature reserves and Natura 2000 sites, from INPN. A national park’s core is strictly protected; its outer area and a regional park are charters between communes, not bans. Designations overlap, so the total counts each piece of land once.
- Woodland. Forest and woods as OpenStreetMap maps them, private woods included: woods nobody has mapped are missing, and a mapped wood isn’t necessarily open to walkers.
- Footpaths and hiking routes. Footpaths, bridleways, steps and tracks open on foot, then waymarked hiking routes (GR and others) measured apart. A route often follows a path or lane already counted: the two overlap. Paths nobody has mapped are missing.
- Green space nearby. The share of residents (INSEE’s 200 m grid) within 800 m, as the crow flies, of a mapped park, garden or wood edge. It measures nearness, not a way in. Guadeloupe and French Guiana have no grid: their pages say whether the town center is within 800 m.
- The coast. The straight-line distance from the town center to OpenStreetMap’s coastline, which follows the tide line into estuaries. A commune is on the coast when the coastline crosses its boundary.
- No grade yet. U.S. and UK towns have an Outdoors Grade; French towns don’t yet. Each figure is set beside the median of compared communes (those with an overall grade) in the département and in France, each figure its own median.
Questions about the outdoors in Mareil-Marly
Is Mareil-Marly in a national or regional nature park?
No. The nearest protected area is Etangs et rigoles d’Yveline nature reserve, 11 km from the town center.
Are there good walks in Mareil-Marly?
OpenStreetMap maps 7 km of footpaths and tracks open on foot in the commune, 3.8 km per km² (the median compared town: 1.7 km per km²).
How much of Mareil-Marly is woodland?
24% of the commune is mapped woodland, private woods included; the median compared French town has 13%.
Is Mareil-Marly near the sea?
No: the coast is 136 km from the town center, as the crow flies.
When is the best time for walking in Mareil-Marly?
April to September: long days, mild highs and little rain, from Météo-France’s 1991–2020 normals at the nearest suitable station.
Why is there no Outdoors Grade for French towns?
TownRatings grades the outdoors in the U.S. and the UK; the French figures are new and not graded yet. This page sets each one beside the median compared French town instead.
Sources: INPN / PatriNat (protected areas 2026, Natura 2000 2024) · © OpenStreetMap contributors, ODbL (paths, hiking routes, woods, coast, gardens) · INSEE, Filosofi 2021 200 m grid (residents) · IGN Admin Express (boundaries) · Météo-France normals 1991–2020 · Medians and percentiles: TownRatings, over compared French towns, updated November 4, 2026. Under the Licence Ouverte / Open Licence 2.0 (Etalab).
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.