Parc du Château de la Hulpe or Domaine Solvay

The Solvay Estate was built on land that was once part of the Sonian Forest. It owes its name to Ernest Solvay, an industrialist who invented a new process for manufacturing soda ash (used in glassmaking and metallurgy). In 1893, he acquired the estate to use as his second home. The Solvay Estate includes a beautiful château. In 1968, Ernest Solvay's grandson, Ernest-John Solvay, donated the estate to the state.

Details

463179
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 11.28 km
  • ◔
    Average duration: 3h 40 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 151 m
  • ↘
    Descent: - 154 m

  • ▲
    Highest point: 147 m
  • ▼
    Lowest point: 66 m

Photos

Description of the walk

(S/E) Leave the Folon Foundation car park towards Drève de la Ramée, then take this lane on your left.
About 300 metres further on, on your right, you will see a barrier, which is the start of Drève Joséphine, which you will take. We will take you on a short circular route to discover and enjoy the Sonian Forest.
Continue straight ahead on Chemin Parmentier.

(1) At an intersection, take a slightly uphill path on your left, the Drève de la Sapinière.
At the star-shaped crossroads, turn right onto Drève de la Meute and continue straight ahead along this beautiful forest path until you reach the entrance to the Solvay Estate, marked by a gate (open).

(2) Turn right and enter the estate.

(3) You will see a very large meadow in the distance and just before you reach it, turn left to quickly walk along it. From this path, you will have beautiful views of the castle. The path turns at a right angle to the right, continue. At the next intersection, leave the small path on your right and continue straight ahead on a path that slopes slightly downwards.

(4) You will arrive at a beautiful area with picnic tables, after passing a beautiful reed hedge. You will arrive at Pré des Pettes, which means "pears" in Walloon. At the far end of this meadow, you will see a concrete bridge on your right. Cross the bridge and then cross the wide path to take a small path on your right that climbs quite steeply.

At the top of the steep slope, turn left. You will see a beautiful, very wide meadow. As soon as you can, turn left and head towards the three giant sequoias. Take the time to touch their soft, silky bark, then head downhill towards the Vallée de l'Argentine and the Étang du Gris Moulin.

(5) Turn right and take an imposing path, which is very busy on public holidays. You will arrive at Étang Rond, which you will leave on your left, and walk along Étang de la Longue Queue, turning right to reach the foot of the stairs that will take you to the Belvédère.

(6) Climb the 140 or so steps, but don't expect to have a breathtaking view from the top. Huge thuja trees prevent you from admiring the estate...
On your way back down, take a short detour to the Pagoda and then continue along the path that will take you to the end of the Longue Queue Pond.

(7) Continue around it, turning left. This wide path will take you to Château de la Hulpe.

(8) Take the time to walk around the castle, which dates from the early 19th century. Take the wide path (north-west) to the next point, walking along the meadow on your right.

(9) Turn left and walk between the rhododendron bushes. The path climbs slightly, then descends, starting a long left-hand bend. You will soon see a rock bridge.

(10) Turn right and cross the bridge.

(11) You will cross a meadow created by the grandson of Ernest Solvay, the last owner of the estate. On your left, you can admire the château, and on your right, the obelisk erected by Ernest-John Solvay.
Continue along this path and, after a slight descent, keep left and go around the pond to arrive at the magnificent Fondation Folon.

(12) The Taverne de l'Homme Bleu offers excellent brasserie service. There is a large, pleasant terrace where you can enjoy the fine weather.
Going back up Drève de la Ramée, you will return to your starting point, passing by the orchards, which contain a collection of rare fruit tree species (S/E).

Waypoints

  1. S/E : km 0 - alt. 84 m - Folon Foundation car park
  2. 1 : km 1.39 - alt. 106 m - Drève de la Sapinière
  3. 2 : km 3.93 - alt. 135 m - Entrance to the Solvay Estate
  4. 3 : km 4.55 - alt. 127 m - Turn left and walk along the large meadow
  5. 4 : km 5.68 - alt. 83 m - Le Pré des Pettes
  6. 5 : km 6.56 - alt. 68 m - Argentine and Étang du Gris Moulin
  7. 6 : km 6.89 - alt. 76 m - Climb to the Belvédère
  8. 7 : km 7.54 - alt. 77 m - Longue Queue Pond
  9. 8 : km 8.45 - alt. 84 m - The Castle
  10. 9 : km 9.25 - alt. 118 m - On the left between the rhododendrons
  11. 10 : km 9.95 - alt. 99 m - Turn right towards the rock bridge
  12. 11 : km 10.13 - alt. 96 m - The obelisk
  13. 12 : km 10.68 - alt. 68 m - Folon Foundation
  14. S/E : km 11.28 - alt. 84 m - Folon Foundation car park

Notes

If you enjoy Nordic walking, bring your poles, as almost all the trails are suitable for this activity.
There are no water points along the route, but there is a tavern where you can quench your thirst at the end of your walk.

Worth a visit

Our route through the Solvay Estate passes through various remarkable sites, such as the Pré des Pettes (4), the giant sequoias and the Vallée de l'Argentine (5), the Longue Queue pond (7), the stairs leading to the Belvédère (6), the Château (8), the obelisk (11), the Folon Foundation (12), the orchards, and more.
We recommend downloading the audio guide to the estate onto your smartphones, which can be loaded as an MP3 file.

Reviews and comments

4.4 / 5
Based on 17 reviews

Reliability of the description
4.2 / 5
Ease of following the route
4.2 / 5
Route interest
4.7 / 5
User 6064390

Overall rating : 4.7 / 5

Date of your route : Sep 14, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : Yes

Lots of mountain bikes on the trails

Machine-translated

User 4161300

Overall rating : 5 / 5

Date of your route : Jun 21, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant hike in the shade of tall trees, off the beaten track of the Solvay Estate!

Machine-translated

Daniel DEHANNE
Daniel DEHANNE

Overall rating : 4.7 / 5

Date of your route : Dec 02, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

The entire Forêt de Soignes area, particularly the park with its arboretum, Solvay Castle, and the Folon Museum (Belgian painter and sculptor)
the area is particularly popular in all seasons. The site also offers several hundred kilometres of trails, allowing you to personalise your walks.

Machine-translated

Littlejo
Littlejo

Overall rating : 5 / 5

Date of your route : Jun 20, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A superb walk. I loved the part in the forest, the wonderful sequoias, and Solvay Park with its lakes. I was also lucky enough to see deer, a fox, squirrels and lots of birds. Many thanks for this wonderful walk

Machine-translated

Dubois Thérèse
Dubois Thérèse

Overall rating : 5 / 5

Date of your route : May 01, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant route for families. NB: the start and end of the walk (not far from the car park) are quite busy with cyclists and walkers.

Machine-translated

kimouche
kimouche

Overall rating : 4 / 5

Date of your route : Feb 26, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★☆☆ Average
Very busy route : Yes

A pleasant stroll for a Sunday afternoon

Machine-translated

mdchoisez
mdchoisez

Overall rating : 3 / 5

Date of your route : Dec 28, 2020
Reliability of the description : ★★☆☆☆ Disappointing
Ease of following the route : ★★☆☆☆ Disappointing
Route interest : ★★★★★ Very good
Very busy route : Yes

We only had the paper version of the description and map. The start is not at all obvious (we set off in the wrong direction :-) )
Further on, there are lots of paths in the woods... it's hard not to get lost.
A very pleasant walk!

Machine-translated

MumRose
MumRose

Overall rating : 4.7 / 5

Date of your route : Oct 15, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A wonderful discovery... we mainly used the GPS phone...

Machine-translated

Domimo
Domimo

Hello,
We had both, but the map is not detailed enough. It was the start that confused us the most.
The description needs to be revised because it's a beautiful walk.
Thank you.

Machine-translated

NFCB
NFCB

Hello, thank you for your comment. Did you print out the map for the walk, or did you rely solely on the description, which might explain why you found it difficult to find your way at the start of the walk (I should provide more detailed directions for the starting point)
Have a lovely day. Catherine

Machine-translated

Domimo
Domimo

Overall rating : 3.7 / 5

Date of your route : Sep 13, 2020
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : Yes

A little disappointed because we couldn't find the start of the walk.
We started at point 5 following the information provided by the park manager.
Description needs to be revised.
Despite everything, it was a lovely walk around the estate.

Machine-translated

NFCB
NFCB

Hello. Thank you for your comment! The location is indeed magnificent. I hope you still managed to visit the meadow I mention in the description, where these magnificent giant sequoias stand...
Best regards. Catherine

Machine-translated

Fradel65
Fradel65

Overall rating : 4.3 / 5

Date of your route : Jul 30, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A magnificent walk and splendid scenery! Luckily, there was hardly anyone in the park or in the Sonian Forest.
The only downside was that we never found the path leading to point 4 at the edge of the meadow.

Machine-translated

avanbrabant
avanbrabant

Overall rating : 4.7 / 5

Date of your route : Mar 15, 2020
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

A very beautiful and varied route.

Machine-translated

janNamaste
janNamaste

Overall rating : 5 / 5

Date of your route : Feb 03, 2020
Reliability of the description : Not used / Not applicable
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

We combined this hike with the Solvay Regional Estate and La Hulpe Castle to make it a bit longer. Very pretty and easy to find.

Machine-translated

Other walks in the area

For more walks, use our search engine .

The GPS track and description are the property of this route's author. Please do not copy them without permission.