Walking tour B&E (Forest and Eat) Sonian Forest

Hiking B&E (Forest and Eats) Sonian Forest.
B&E also represents my neighbors Betty and Erik who wanted a nice nature walk; Not too long (max. 20 km), quietly located, with a pit stop for a drink/snack, and on which a number of "little known but striking" things can be seen.

Starting point: Groenendaal railway station (also a large car park)

What will you see/feel:
1.La Sonian Forest has plenty of treasure trove of trails under the trees, away from the busy streets/highways it crosses.
2. Groenendaal domain where you go at the beginning and end. At first, a subsection was taken under the RO (eastern ring around Brussels) and the Ganzepootvijvers.
3. Botermansdelleweg along the stream towards Middenhut (where you can refuel at a petrol station -Octa-. We are then almost 8km on the road .... The forest of Zoniên is sloping, so a pit stop just before the halfway point seems appropriate...
4. Via the Koninginnepad, we go to the Boswachtersmonument.
5. Just cross the bustling Harasdreef, after which the path goes to the two Roman burial mounds. We also follow the Vuylbeek which is not really dirty.
6. Through the Tumuliweg, we return to Groenendaal, where we first cross an old Hyppodroom, then cross the arboretum on its south and east sides, and at the end pass the Jan-Van-Ruusbroec-Bosmuseum.
7.Via the special bridge for pedestrians and cyclists, we cross the RO to return to our starting point. We then traveled 19km.

Simple and good.