# Liaison GR 37 - GR 39, France: what it is and when to go

> Liaison GR 37 - GR 39 is a hiking trail in France (Rennes). Interests: Hiking. The best time to visit is April to October. In June there are 15 h 51 of daylight, and in December, 8 h 09. 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/liaison-gr-37-gr-39/
- Reviewed on: 2026-10-02
- Language: en

## In a nutshell

- **What it is:** Hiking trail · Hiking
- **Where:** France
- **Best time:** April to October.
- **Nearest airport:** ORY Paris (Orly, Val-de-Marne), 286 km as the crow flies
- **Trail network:** National
- **Coordinates:** 48.22644, -1.4401

## What it is and where

Liaison GR 37 - GR 39 is a hiking trail in France (Rennes).

It is in [Rennes](https://kokai.app/en/paises/europa/francia/rennes/), where this site lists 43 more places to see, 22 km from the centre.

Its coordinates are 48.22644, -1.4401; the nearest main airport is Paris-Orly Airport (ORY, Paris (Orly, Val-de-Marne)), 286 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=48.226439%2C-1.440098)
- [Directions](https://www.google.com/maps/dir/?api=1&destination=48.226439%2C-1.440098)

- **Trail network:** National

It is one of the [Hiking](https://kokai.app/en/paises/europa/francia/senderismo/) 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 Liaison GR 37 - GR 39 is **April to October**.

| Mes | Época | Hours of daylight |
| --- | --- | --- |
| January | Possible | 8 h 33 |
| February | Possible | 9 h 57 |
| March | Possible | 11 h 35 |
| April | Best time | 13 h 26 |
| May | Best time | 14 h 59 |
| June | Best time | 15 h 51 |
| July | Best time | 15 h 29 |
| August | Best time | 14 h 07 |
| September | Best time | 12 h 20 |
| October | Best time | 10 h 33 |
| November | Possible | 8 h 57 |
| December | Possible | 8 h 09 |

In June there are 15 h 51 of daylight, and in December, 8 h 09. 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.

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

- [Menhir de la Baudouinais](https://kokai.app/en/paises/europa/francia/roche-piquee/): Archaeological site · 3.2 km
- [Chevré](https://kokai.app/en/paises/europa/francia/ensemble-fortifie-de-la-chapelle-et-du-pont-de-chevre/): History · 3.9 km
- [Château de Saint-Aubin-du-Cormier](https://kokai.app/en/paises/europa/francia/chateau-de-saint-aubin-du-cormier/): Medieval castle in Saint-Aubin-du-Cormier, France · 5.2 km
- [Château du Bordage](https://kokai.app/en/paises/europa/francia/chateau-du-bordage/): Castle in Ercé-près-Liffré, France · 6.2 km
- [Diverty Parc](https://kokai.app/en/paises/europa/francia/diverty-parc/): With kids · 6.5 km

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

## More in France: Hiking

- [Camino de Santiago](https://kokai.app/en/paises/europa/francia/camino-de-santiago/): Catholic pilgrimage to Santiago de Compostela, Spain
- [French Way](https://kokai.app/en/paises/europa/francia/camino-frances-01-san-juan-pie-de-puerto-a-logrono/): pilgrims' way, part of Santiago Way
- [GR 20](https://kokai.app/en/paises/europa/francia/gr-20/): long distance hiking route in France
- [E3 European long distance path](https://kokai.app/en/paises/europa/francia/ruta-europea-caminar-e3/): walking path
- [Tour du Mont Blanc](https://kokai.app/en/paises/europa/francia/tour-du-mont-blanc-itineraire-principal/): long distance hiking route in France, Italy and Switzerland
- [E9 European long distance path](https://kokai.app/en/paises/europa/francia/european-long-distance-path-e9/): walking path, Europe

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

## Frequently asked questions

### What is Liaison GR 37 - GR 39?

It is a hiking trail in France.

### When is the best time to visit Liaison GR 37 - GR 39?

April to October. In June there are 15 h 51 of daylight, and in December, 8 h 09.

### How do you get to Liaison GR 37 - GR 39?

The nearest main airport is Paris-Orly Airport (ORY), 286 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=48.226439%2C-1.440098) 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 [Menhir de la Baudouinais](https://kokai.app/en/paises/europa/francia/roche-piquee/), [Chevré](https://kokai.app/en/paises/europa/francia/ensemble-fortifie-de-la-chapelle-et-du-pont-de-chevre/), [Château de Saint-Aubin-du-Cormier](https://kokai.app/en/paises/europa/francia/chateau-de-saint-aubin-du-cormier/). The rest is in [the France guide](https://kokai.app/en/paises/europa/francia/).

Data from [OpenStreetMap](https://www.openstreetmap.org/relation/10914990), licensed under the ODbL. Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).