# Réserve naturelle nationale des marais d'Isle, France: what it is and when to go

> Réserve naturelle nationale des marais d'Isle is a protected area in France (Alaincourt). Interests: Nature and Wildlife. The best time to visit is April to October. In June there are 16 h 06 of daylight, and in December, 7 h 54. It has an article in one Wikipedia, so it is not one of the busiest places in France: one to enjoy at a calmer pace. Here is what it is, where it lies, when to come, how to get there and what else is nearby to turn it into a trip.

- Address: https://kokai.app/en/paises/europa/francia/reserve-naturelle-des-marais-d-isle/
- Reviewed on: 2026-10-02
- Language: en

## In a nutshell

- **What it is:** Protected area in France · Nature, Wildlife
- **Where:** France
- **Best time:** April to October.
- **Nearest airport:** CDG Paris (Roissy-en-France, Val-d'Oise), 109 km as the crow flies
- **Coordinates:** 49.85122, 3.30952

## What it is and where

Réserve naturelle nationale des marais d'Isle is a protected area in France (Alaincourt). It has an article in one Wikipedia, so it is not one of the busiest places in France: one to enjoy at a calmer pace.

It is in [Alaincourt](https://kokai.app/en/paises/europa/francia/alaincourt/), where this site lists 13 more places to see, 11 km from the centre.

Its coordinates are 49.85122, 3.30952; the nearest main airport is Charles de Gaulle International Airport (CDG, Paris (Roissy-en-France, Val-d'Oise)), 109 km as the crow flies. How to get around France (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/europa/francia/#moverse).

- [Where it is](https://www.google.com/maps/search/?api=1&query=49.851221%2C3.309521)
- [Directions](https://www.google.com/maps/dir/?api=1&destination=49.851221%2C3.309521)

It is one of the [Nature](https://kokai.app/en/paises/europa/francia/naturaleza/) and [Wildlife](https://kokai.app/en/paises/europa/francia/fauna/) places in France. In [Kokai](https://kokai.app/en/) it is already on your trip map next to the places you save yourself, and it goes into a day's plan with one tap.

## When to go

The best time to visit Réserve naturelle nationale des marais d'Isle is **April to October**.

| Mes | Época | Hours of daylight |
| --- | --- | --- |
| January | Possible | 8 h 20 |
| February | Possible | 9 h 50 |
| March | Possible | 11 h 33 |
| April | Best time | 13 h 31 |
| May | Best time | 15 h 10 |
| June | Best time | 16 h 06 |
| July | Best time | 15 h 43 |
| August | Best time | 14 h 15 |
| September | Best time | 12 h 21 |
| October | Best time | 10 h 28 |
| November | Possible | 8 h 46 |
| December | Possible | 7 h 54 |

In June there are 16 h 06 of daylight, and in December, 7 h 54. Daylight hours are calculated from the site's latitude for the 15th of each month; when planning a full day on foot they matter as much as the weather.

| What you come for | Best time | Possible |
| --- | --- | --- |
| Nature | April to October | November to March |
| Wildlife | April to October | November to March |

It is not the same trip whatever you come for: Réserve naturelle nationale des marais d'Isle has a different season depending on what you want to do here, and [Kokai](https://kokai.app/en/) puts it in the right month for you.

When to go to France in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/europa/francia/#cuando-ir).

## Before you go to France

To enter France there are 6 things to sort out before you leave, starting with “Valid ID card (DNI) or passport”: they are all, with their deadlines, in [the France checklist](https://kokai.app/en/paises/europa/francia/#antes-de-salir). Currency: Euro (EUR); plugs: Type C and E · 230 V · 50 Hz; emergencies: 112 · 15 ambulance (SAMU) · 17 police · 18 fire brigade.

In [Kokai](https://kokai.app/en/) you tick off the checklist inside your trip, and each item reminds you when it is time to do it.

## What is nearby

- [Basilica of Saint-Quentin](https://kokai.app/en/paises/europa/francia/basilique-saint-quentin/): Basilica located in Aisne, in France · 1.4 km
- [Musée Antoine-Lécuyer](https://kokai.app/en/paises/europa/francia/musee-antoine-lecuyer/): Museum in Saint-Quentin, France · 1.8 km
- [Saint-Quentin german military cemetery](https://kokai.app/en/paises/europa/francia/saint-quentin-german-military-cemetary/): Cemetery located in Aisne, in France · 3.5 km
- [Fonsommes - Saint-Quentin](https://kokai.app/en/paises/europa/francia/fonsommes-saint-quentin/): Hiking · 3.7 km
- [Pigeonnier de Marcy](https://kokai.app/en/paises/europa/francia/pigeonnier/): History · 6.9 km

Distances are as the crow flies. Everything else is in [the France guide](https://kokai.app/en/paises/europa/francia/).

## More in France: Nature

- [Mont Blanc](https://kokai.app/en/paises/europa/francia/mont-blanc/): highest mountain in the Alps
- [Chartres Cathedral](https://kokai.app/en/paises/europa/francia/cathedrale-notre-dame/): medieval Catholic cathedral in Chartres, France
- [Lascaux](https://kokai.app/en/paises/europa/francia/lascaux-cave/): cave in southwestern France famous for its Paleolithic cave paintings
- [Chauvet Cave](https://kokai.app/en/paises/europa/francia/grotte-chauvet/): cave in France
- [Champ de Mars](https://kokai.app/en/paises/europa/francia/campo-de-marte/): large public green space in Paris, France
- [Jardin du Luxembourg](https://kokai.app/en/paises/europa/francia/luxembourg-garden/): urban park in Paris, France

Every France place under Nature, each with its season, is on [its page](https://kokai.app/en/paises/europa/francia/naturaleza/).

## Frequently asked questions

### What is Réserve naturelle nationale des marais d'Isle?

It is a protected area in France. It has an article in one Wikipedia, so it is not one of the busiest places in France: one to enjoy at a calmer pace.

### When is the best time to visit Réserve naturelle nationale des marais d'Isle?

April to October. In June there are 16 h 06 of daylight, and in December, 7 h 54.

### How do you get to Réserve naturelle nationale des marais d'Isle?

The nearest main airport is Charles de Gaulle International Airport (CDG), 109 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=49.851221%2C3.309521) opens the route on the map, and how to get around France is explained in [its country guide](https://kokai.app/en/paises/europa/francia/#moverse).

### How do I add it to my trip?

With one tap. In Kokai it is already on the France map, next to the places you save yourself: add it to a day's plan, give it a time and, if you like, get a reminder when you pass nearby.

### What else is around here?

Nearby you have [Basilica of Saint-Quentin](https://kokai.app/en/paises/europa/francia/basilique-saint-quentin/), [Musée Antoine-Lécuyer](https://kokai.app/en/paises/europa/francia/musee-antoine-lecuyer/), [Saint-Quentin german military cemetery](https://kokai.app/en/paises/europa/francia/saint-quentin-german-military-cemetary/). The rest is in [the France guide](https://kokai.app/en/paises/europa/francia/).

Data from [OpenStreetMap](https://www.openstreetmap.org/way/65708954), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/wiki/Q3457422), CC0. Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).