DAY OF...
GREEN THURSDAY
‘I enjoy seeing the happy faces on all those walkers’
In photo: Bart van der Aa
A beautiful nature walk is something you can wake forest ranger Bart van der Aa up for in the middle of the night. The hills in the southern part of the province of Limburg are his favourite place to hike. And while he has walked the Kennedy march, he gladly leaves the 4Days Marches to others. As the forest ranger responsible for the Heumensoord woodland, he prefers to be the proud host to the many thousands of walkers who stride through ‘his’ nature reserve: ‘I really enjoy seeing the happy faces on all those walkers.’ Bart sees many positives to the fact that over 40,000 participants get to experience the natural beauty of the Rijk van Nijmegen area. ‘The only downside is the litter by the side of road afterwards. Many people use the woods as a toilet, which is understandable when nature calls. But for walkers and tourists who visit us the week after on their summer holiday, all that toilet paper is not so nice. It would be great if there were another way.’
Bart van der Aa
Bart van der Aa, forest ranger (44), lives in the Peel region of the province of Brabant with his 8-year-old daughter. They regularly head out into nature together, preferably the hills in the southern part of the province of Limburg. For Bart, walking is ‘relaxing, slowing down, unwinding and enjoying.’ He walks a lot and even did the 80km Kennedy march once.
Bart van der Aa invites you along on a tour of his highlights of Green Thursday: Heumensoord, a great place to be before, during and after the 4Days Marches.
1. Heumensoord
Camp Heumensoord is where all military participants stay during the 4Days Marches. But there is more to Heumensoord than that. The woods to the south of the city of Nijmegen have a rich history. The small mounds are a reminder that Heumensoord was once used for military exercises and shooting practice, and there is actually still a military shooting range in use at Heumensoord. With an old Roman route running through them, the woods are home to the (restored) remains of a late-Roman watchtower. Heumensoord’s characteristic beech tree-lined lane is one you really should see, according to Bart: ‘The tall trees really make it a sight to behold. What makes Heumensoord all the more special is the variety of closely spaced landscapes along the push moraine: woodland, heathland and rivers.’

2. Impact on nature
With a military camp accommodating 7,000 people and many tens of thousands of participants en route every day and dropping all kinds of things, the 4Days Marches obviously has an impact on nature. On the site where the camp is put up every year, nature cannot develop further into a true nature reserve and wildlife area. ‘During COVID-19 times, we got a glimpse of what the area could turn into: meadows, heath-like land with lots of space for rare reptiles and insects. It prompted us to build a nature link over the past few years. Together with the Ministry of Defence, we changed the way the tents are arranged at the camp. Part of the camp has been rearranged to be able to put more tents on one part of the site, so that we could give another part of the site back to nature. Heumensoord is also a water extraction area, and a positive development we have seen is that the diesel generators that are used to power the camp are increasingly being replaced with renewable energy. The 4Days Marches is also becoming more and more sustainable in other ways.

3. Koningsven-De Diepen
One spot that Bart thinks walkers should not pass up on is the Koningsven-De Diepen nature reserve between the town of Groesbeek and the village of Milsbeek. ‘Botanically speaking, it really is a stunning area. In 1935, these peatlands were developed and subsequently used for agriculture. In 2017, the area was dug up and returned to nature. Now we see a lot of special orchids and water birds thrive there. Those walking the 40km and 50km routes will pass this area on their way to the first climb, which offers a superb panoramic view as you walk towards the push moraine. The 30km crowd will get to enjoy it as they pass along Mooksebaan, which is a beautiful road that runs right through the beech tree forests. The restaurant called ’t Zwaantje makes for a great starting point for walks passing iconic sights such as the hunting lodge in the Mookerheide moorland. This 120-year-old hunting lodge was reopened last year, after a renovation that took eight years. There are also walks that start at the hunting lodge.

‘What makes Heumensoord so special is the variety of closely spaced landscapes along the push moraine: woodland, heathland and rivers.’
4. Animals along the route
Whether you will actually see them during the 4Days Marches, with over 40,000 walkers passing by, remains to be seen, but the area is home to badgers, deer, rare insects, birds of prey, various woodpecker species, and reptiles such as sand lizards and barred grass snakes. For most of these animals, things probably get too hectic during the 4Days Marches, so they will keep a low profile, but you might just spot the odd bird of prey soaring in the sky. Bart: ‘Especially when walking towards Sint-Jansberg, you can spot buzzards and hawks.’ It’s a good reason to come back to this area at another time.
5. Heumen on repeat
You will not be surprised to hear that Heumensoord is located in the municipality of Heumen. But has it ever struck you that this municipality is the only one you pass through on all four days of the 4Days Marches? Bear this in mind and see how you experience Heumen on each of the four days, and how the experience changes or remains the same from one day to the next.

6. Do you remember?
They are not there anymore, but perhaps the more experienced walkers among you will remember them: the forest rangers at the side of the route near De Diepen restaurant, with a cart and banner over the road. ‘The banner was our way to cheer on the walkers and we had leaflets for anyone who was interested in what we do. It was very special and great fun how some walkers would take the time to stop and chat with us about this stunning area of natural beauty.’
Tips from the forest ranger
Green Thursday is the day of woods and hills. Hills are not something we are used to in our flat country. Bart has several tips that may also come in handy after the 4Days Marches:
- Wear sturdy shoes. Preferably high-cut or low-cut hiking boots.
- Use anti-tick spray or wear thin long-sleeved shirts and full-length trousers.
- Walk at a calm pace, so that you can keep your breathing under control.
- Look around you and enjoy all the natural beauty.
- Get sufficient rest: there are plenty of lovely spots where you can take a breather.
- Bring a bag for your rubbish and protect nature.
- Be prepared for the fact that it may be chillier in a woody environment.