# GR 121B de Bailleul à Rieulay, Belgium: what it is and when to go > GR 121B de Bailleul à Rieulay is a hiking trail in Belgium. Interests: Hiking. The best time to visit is April to October. In June there are 16 h 14 of daylight, and in December, 7 h 46. 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/belgica/gr-121b-de-bailleul-a-rieulay/ - Reviewed on: 2026-10-02 - Language: en ## In a nutshell - **What it is:** Hiking trail · Hiking - **Where:** Belgium - **Best time:** April to October. - **Nearest airport:** BRU Zaventem, 116 km as the crow flies - **Website:** [gr-infos.com](https://www.gr-infos.com/en/gr121_B.htm) - **Trail network:** National - **From:** Bailleul - **To:** Rieulay - **Run by:** FFRP - **Coordinates:** 50.71279, 2.86529 ## What it is and where GR 121B de Bailleul à Rieulay is a hiking trail in Belgium. Its coordinates are 50.71279, 2.86529; the nearest main airport is Brussels Airport (BRU, Zaventem), 116 km as the crow flies. How to get around Belgium (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/europa/belgica/#moverse). - [Where it is](https://www.google.com/maps/search/?api=1&query=50.712791%2C2.865289) - [Directions](https://www.google.com/maps/dir/?api=1&destination=50.712791%2C2.865289) - **Trail network:** National - **From:** Bailleul - **To:** Rieulay - **Run by:** FFRP It is one of the [Hiking](https://kokai.app/en/paises/europa/belgica/senderismo/) places in Belgium. 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 GR 121B de Bailleul à Rieulay is **April to October**. | Mes | Época | Hours of daylight | | --- | --- | --- | | January | Possible | 8 h 13 | | February | Possible | 9 h 46 | | March | Possible | 11 h 32 | | April | Best time | 13 h 34 | | May | Best time | 15 h 17 | | June | Best time | 16 h 14 | | July | Best time | 15 h 50 | | August | Best time | 14 h 20 | | September | Best time | 12 h 22 | | October | Best time | 10 h 25 | | November | Possible | 8 h 39 | | December | Possible | 7 h 46 | In June there are 16 h 14 of daylight, and in December, 7 h 46. 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 Belgium in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/europa/belgica/#cuando-ir). ## Before you go to Belgium To enter Belgium there are 5 things to sort out before you leave, starting with “Valid Spanish ID card (DNI) or passport”: they are all, with their deadlines, in [the Belgium checklist](https://kokai.app/en/paises/europa/belgica/#antes-de-salir). Currency: Euro (EUR); plugs: Type C and E · 230 V · 50 Hz (as in France); emergencies: 112 · 101 police. 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 - [Brasserie Vanuxeem](https://kokai.app/en/paises/europa/belgica/brasserie-vanuxeem/): Brewery · 1.4 km - [Strand Military Cemetery](https://kokai.app/en/paises/europa/belgica/strand-military-cemetery/): Cemetery located in Belgium · 2.5 km - [Berks Cemetery Extension](https://kokai.app/en/paises/europa/belgica/berks-cemetery-extension/): Cemetery located in Belgium · 3.0 km - [Hyde Park Corner (Royal Berks) Cemetery](https://kokai.app/en/paises/europa/belgica/hyde-park-corner-royal-berks-cemetery/): Cemetery located in Belgium · 3.0 km - [Rifle House Cemetery](https://kokai.app/en/paises/europa/belgica/rifle-house-cemetery/): Commonwealth War Graves Commission Burial Ground · 3.6 km Distances are as the crow flies. Everything else is in [the Belgium guide](https://kokai.app/en/paises/europa/belgica/). ## More in Belgium: Hiking - [Camino de Santiago](https://kokai.app/en/paises/europa/belgica/camino-de-santiago/): Catholic pilgrimage to Santiago de Compostela, Spain - [E3 European long distance path](https://kokai.app/en/paises/europa/belgica/ruta-europea-caminar-e3/): walking path - [E9 European long distance path](https://kokai.app/en/paises/europa/belgica/european-long-distance-path-e9/): walking path, Europe - [GR 12](https://kokai.app/en/paises/europa/belgica/gr-12-amsterdam-bruxelles-paris-belgium-main-route-wallonia/): long distance hiking route in the Netherlands, Belgium and France - [Wildnis Trail](https://kokai.app/en/paises/europa/belgica/wildnis-trail/): German hiking trail - [Beverpad](https://kokai.app/en/paises/europa/belgica/beverpad/) Every Belgium place under Hiking, each with its season, is on [its page](https://kokai.app/en/paises/europa/belgica/senderismo/). ## Frequently asked questions ### What is GR 121B de Bailleul à Rieulay? It is a hiking trail in Belgium. ### When is the best time to visit GR 121B de Bailleul à Rieulay? April to October. In June there are 16 h 14 of daylight, and in December, 7 h 46. ### How do you get to GR 121B de Bailleul à Rieulay? The nearest main airport is Brussels Airport (BRU), 116 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=50.712791%2C2.865289) opens the route on the map, and how to get around Belgium is explained in [its country guide](https://kokai.app/en/paises/europa/belgica/#moverse). ### How do I add it to my trip? With one tap. In Kokai it is already on the Belgium 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 [Brasserie Vanuxeem](https://kokai.app/en/paises/europa/belgica/brasserie-vanuxeem/), [Strand Military Cemetery](https://kokai.app/en/paises/europa/belgica/strand-military-cemetery/), [Berks Cemetery Extension](https://kokai.app/en/paises/europa/belgica/berks-cemetery-extension/). The rest is in [the Belgium guide](https://kokai.app/en/paises/europa/belgica/). Data from [OpenStreetMap](https://www.openstreetmap.org/relation/5547168), licensed under the ODbL. Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).