Centrum to Noordwijk via Roderwolderdijk and Groningerweg

You’ll be walking out of the Groningen city centre into classic northern Dutch lowland: long, ruler-straight roads on dikes, wide drainage ditches, reedbeds and open pasture, with almost no climbing (about 0 m / 0 ft of meaningful elevation gain across ~21 km / ~13.0 mi). Underfoot is mostly paved cycle path, quiet farm lanes, and dike-top roads, so it’s an easy-effort day physically—your main challenges are wind exposure, weather, and sharing space with bikes.

Getting to the start (Centrum) + where to begin

“Centrum” is best treated as Groningen city centre, with the simplest, most reliable start point being Groningen Central Station (Hoofdstation), Stationsweg, Groningen—a major landmark and transit hub.

• By public transport: Take a train to Groningen Hoofdstation (direct intercity connections from major Dutch cities). From the station you can immediately pick up city walking/cycle paths heading southwest toward the outskirts.
• By car: Parking in the inner centre is limited/paid. If you want a smoother start, consider parking at a P+R on the southwest side of Groningen and walking in to connect, but if you’re committed to “Centrum,” plan for paid garages near the station/inner city.
• Navigation: Load the route in HiiKER and keep it handy—this area has many parallel roads and dikes that look similar, and it’s easy to drift onto the “wrong-but-still-straight” lane.

What the route feels like (by distance)

0–5 km / 0–3.1 mi: City edges → open land Leaving the centre, you’ll transition from urban streets to the city fringe fairly quickly. Expect frequent cycle traffic at first—commuters and fast e-bikes—so walk predictably and keep right on shared paths. As buildings thin out, the landscape opens into broad fields with drainage channels and scattered farmsteads.

5–13 km / 3.1–8.1 mi: Roderwolderdijk through De Onlanden (big-sky wetland) Once you’re on/near Roderwolderdijk, the character becomes distinctly “dike walking”: long, level lines with water on one or both sides and very little shelter. This corridor borders/threads De Onlanden, a large wetland and water-storage nature area created to hold excess water and reduce flood risk for the region. Some of the roads here have existed for centuries; the Roderwolderdijk itself is described as one of the historic routes in the area, and it was built as a connection linked to clay extraction activities associated with the former monastery at Aduard. (deonlanden.nl)

Wildlife is a major highlight in this section: - Expect lots of waterbirds (geese, ducks, herons), and in reedbeds you may hear (or, if you’re lucky, glimpse) secretive species. De Onlanden is managed as a high-quality wetland with strong ecological connections, and it’s known as an important area for wildlife. (deonlanden.nl)
- Bring binoculars if you have them; even on a casual hike, the open sightlines make birding easy.

13–21 km / 8.1–13.0 mi: Groningerweg onward → Noordwijk (rural settlement finish) Turning onto/along Groningerweg, you’ll be back in a more agricultural mosaic: fields, farm access lanes, and occasional small clusters of houses. The walking remains flat and straightforward, but pay attention at junctions—many intersections are unsigned or signed primarily for cyclists/drivers.

Your finish, Noordwijk, is a small village in the province of Groningen (municipality of Westerkwartier). It sits at a junction where road names point directions (a very “this-is-a-crossroads” kind of place), and it has a church that has been restored and is associated with the Stichting Oude Groninger Kerken (Old Groningen Churches Foundation). (en.wikipedia.org)
That church area is a good practical “end landmark” to aim for in HiiKER if you want a clean endpoint rather than a vague village boundary.

Terrain, conditions, and what to watch for

• Surface: Predominantly hard surfaces (asphalt/brick/concrete). Comfortable