During the Vierdaagse, the site transforms into the world's largest temporary military campsite.
The forest is part of a larger ecological corridor connecting the Maas river valley to the Veluwe hills.
The sandy soil composition is a relic of glacial deposits from the Saalian glaciation period.
The area is actively managed to control invasive plant species that threaten local heathland biodiversity.
Heumensoord is a sprawling forested area located on the outskirts of Nijmegen, serving as a primary training ground for the Nijmegen Four Days Marches (Vierdaagse). The landscape consists primarily of sandy paths, pine forests, and heathland typical of the Veluwe fringe. It functions as a massive temporary encampment during the annual July walking event, hosting thousands of military personnel. Outside of the event window, the terrain provides a quiet network of trails suitable for hiking and cycling. The forest floor is characterized by high acidity, which dictates the specific flora and fauna found in the region.
The elevated sandy ridge points along the main perimeter trails during the golden hour.
Bring a high-quality map or GPS, as the interconnected forest paths are visually repetitive and easy to lose track of.
Visit during the shoulder seasons to avoid the crowds associated with the mid-summer marching event.
Carry sufficient water as there are limited natural springs or facilities within the core forest area.
Do not attempt to enter the site during the third week of July unless you are a registered participant or credentialed guest, as it becomes a restricted military zone.
The area is fully closed to the public during the third week of July for the Vierdaagse military camp.
Keep dogs on a leash in designated areas to protect nesting ground-birds; stay on marked paths to prevent soil erosion.
