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Kayak rules and water levels on the Ourthe and Amblève, kayak prices 2026, the Ninglinspo, the Fondry des Chiens and the caves of Han, Remouchamps and Hotton.
Photo above: DimiTalen · CC0 · via Wikimedia Commons · all photo credits
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Paddling on the Ourthe, walking along the little waterfalls of the Ninglinspo or descending into the Caves of Han: in the Ardennes you are outdoors straight away. We bring together the rules, routes and tickets, so all you have to do is pack your walking boots.
By Arjan Zuur · reference date 21 October 2026 · sources below
We start with the question we get most often: can you kayak today? Then three walks and caves you really must see.

Photo: DimiTalen · CC0 · via Wikimedia Commons · all photo credits
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In Wallonia the rules for kayaking are set out in a decree of the Walloon government of 19 March 2009. It sets the times at which you may paddle and the water level at which a river is closed. Below is the original text; you can see the current status per stretch every morning on Infokayak.
| Period | Allowed |
|---|---|
| 16 March – 15 June | 9.30 am – 7 pm |
| 16 June – 15 October | 9.30 am – 8 pm |
| 16 October – 15 March | 9.30 am – 5 pm |
Annex 1A applies to, among others, the Amblève from Sougné (Aywaille) to Comblain, the Lesse from the Anseremme weir to the Meuse, the Ourthe from Nisramont to Liège and the Semois from Herbeumont to Bohan. On other stretches (Annexes 1B and 1C) shorter times apply: 10 am–5 pm from 1 October to 15 June and 9.30 am–6 pm from 16 June to 30 September; stretches in Annex 1C are closed from 16 March to 30 September.
If the average flow over the last 72 hours is below the minimum, paddling is prohibited that day. The same applies if the maximum is forecast. The thresholds per gauging station:
| River and gauging station | Minimum (m³/s) | Maximum (m³/s) |
|---|---|---|
| Ourthe – Nisramont | 3,0 | 31 |
| Ourthe – Durbuy | 1,9 | 50 |
| Ourthe – Tabreux | 2,5 | 65 |
| Amblève – Stavelot | 1,0 | 21 |
| Amblève – Martinrive | 2,5 | 44 |
| Lesse – Gendron | 1,5 | 52 |
Source: AGW 19 March 2009 (text via etaamb.openjustice.be). This is the original text; later amendments are possible. Current status: Infokayak SPW (updated around 8.15 am); flows: hydrometrie.wallonie.be.
Check Infokayak in the morning. Coo Adventure also asks you to call on the day about the water level.
In La Roche, Brandsport then switches to Lake Nisramont; Ardenne Aventures had closed the Xpert trip on 21 October 2026 because of low water.
Adventure Valley in Durbuy runs from April to October. After mid-October you may only paddle until 5 pm on the main stretches.
| Destination | Trip | Adults | Child | Source |
|---|---|---|---|---|
| Durbuy | Kayak Durbuy → Barvaux – The classic 8 km kayak trip on the Ourthe (± 2 hours) with Adventure Valley. | see official website | see official website | www.adventure-valley.be |
| Durbuy | Kayak via Domaine de Palogne – 7.8 km kayak trip on the Ourthe. | € 26 (two-person pp) | Three-person € 52 (2 adults + 1 child) | www.palogne.be |
| La Roche-en-Ardenne | Kayak with Brandsport – On your own, 8 km from La Roche to Jupille, with transport back. | € 25 | € 25 | www.brandsport.be |
| La Roche-en-Ardenne | Kayak with Ardenne Aventures – Three stretches: Axion (Maboge – La Roche), Xplore (Parc naturel des Deux Ourthes) and Xpert (Nisramont – La Roche). | € 25–35 | from age 4 | ardenneaventures.com |
| Bouillon | Kayak on the Semois (Les Epinoches) – Kayak trips from Bouillon with a free bus back. | € 20–40 | € 10 (under 6) | www.kayak-lesepinoches.be |
| Dinant | Kayak on the Lesse (Dinant Evasion) – 21 km trip (± 5 hours) on the Lesse, past a château and weirs; also a half trip Gendron → Anseremme (12 km). | € 31–44 | € 2.50 discount | www.dinant-evasion.be |
| Malmedy | Kayak at Coo (Coo Adventure) – Kayak trip on the Amblève from Coo to Cheneux (± 2 h 30 min). | € 23–27 | see website | www.coo-adventure.com |
| Aywaille | Kayak at Coo – Coo → Cheneux on the Amblève (± 2 h 30 min). | € 23–27 | see website | www.coo-adventure.com |

Photo: DimiTalen · CC0 · via Wikimedia Commons · all photo credits

Photo: Jean Housen · CC BY 3.0 · resized and cropped · via Wikimedia Commons · all photo credits

Photo: Jean Housen · CC BY-SA 3.0 · resized and cropped · via Wikimedia Commons · all photo credits
From the hamlet of Sedoz you walk about 6 km along the Ninglinspo, a wild stream with rocks and "baths". The area is protected and is on Wallonia's list of exceptional heritage. Wear good shoes.
Source: Municipality of Aywaille, Ninglinspo car park.

Photo: FrDr · CC BY-SA 4.0 · resized and cropped · via Wikimedia Commons · all photo credits

Photo: FrDr · CC BY-SA 4.0 · resized and cropped · via Wikimedia Commons · all photo credits
The Fondry des Chiens lies near Nismes, in the municipality of Viroinval, on the edge of the Ardennes. It is a limestone hollow up to 20 metres deep with large, rounded rocks; such "fondrys" are found in Belgium only in the Viroin area. It is protected as a natural monument. In spring thousands of blue bulb flowers bloom on the limestone grassland beside it.
Source: Viroinval tourism, VISITWallonia.

Photo: Donarreiskoffer · CC BY-SA 4.0 · resized and cropped · via Wikimedia Commons · all photo credits

Photo: Donarreiskoffer · CC BY-SA 4.0 · resized and cropped · via Wikimedia Commons · all photo credits

Photo: AardrijkskundeUitgelegd.nl · CC BY-SA 4.0 · resized and cropped · via Wikimedia Commons · all photo credits
Want to experience the vast forests of the Ardennes, but looking for the ultimate wilderness with huge fjords, the northern lights and the freedom of the right to roam? Discover our wild camping & nature guide at Scandinavië op Reis (in Dutch).
The best known is the Cave of Han, but Remouchamps (with a boat trip) and Hotton (600 steps) are also worth it.
| Cave | Adults | Child | Good to know | Source |
|---|---|---|---|---|
| Cave of Han | € 29 | € 22 (4–11) | PassHan with wildlife park € 41.50 / € 31.50 | grotte-de-han.be |
| Grottes de Remouchamps | € 20 | € 14 (3–11) | back by boat; no dogs | lesgrottes.be |
| Grottes de Hotton | € 15 | € 12 (3–11) | 600 steps, 12 °C; after 8 November weekends only | grottesdehotton.be |

Photo: Musicaline · CC BY-SA 4.0 · resized and cropped · via Wikimedia Commons · all photo credits

Photo: Musicaline · CC BY-SA 4.0 · resized and cropped · via Wikimedia Commons · all photo credits

Photo: Jean-Pol GRANDMONT · CC BY 3.0 · resized and cropped · via Wikimedia Commons · all photo credits
FAQ
Check Infokayak from the Walloon authorities; it shows the status per stretch every morning.
On the main stretches: 16 June–15 October until 8 pm, 16 March–15 June until 7 pm and in winter until 5 pm (AGW 2009).
About 6 km from Sedoz (municipality of Aywaille).
Near Nismes (Viroinval), on the edge of the Ardennes.
Of these three, the Grottes de Hotton: € 15 per adult.