: our 3 rivers, for a descent you will not forget, in the Belgian Ardennes

Kayak descent on the Semois below Bouillon castle, Belgian Ardennes Kayaking on the Semois

Queen of the Belgian Ardennes, the Semois winds through wild meanders below Bouillon castle, in Wallonia's first National Park.

Highlights
  • Calm water, ideal for beginners & families
  • Meanders and National Park views
  • Departures Alle · Vresse · Bouillon
Good to know
  • A car is virtually essential to reach the put-in points (Alle, Vresse, Bouillon)
  • Return shuttle to plan for one-way routes
  • Very calm water: little thrill for sporty paddlers
  • Very busy on July–August weekends
  • Beginner7 kmAlle → Vressefrom 26€
    90–120 min
  • Discovery10 kmPoupehan → Allefrom 30€
    120–180 min
Kayak descent of the Lesse between Gendron and Anseremme, near Dinant Kayaking on the Lesse

A tributary of the Meuse at Dinant, the Lesse offers a livelier, playful descent between rocks and forests, on the Gendron → Anseremme stretch.

Highlights
  • Playful rapids (class I-II)
  • Dinant area & Han caves
  • Half or full day
Good to know
  • Peak crowds in summer: many departures, queues at the weir
  • Fixed boarding times, a single route (Gendron → Anseremme)
  • Compulsory portage at the weir
  • Water level sometimes too low in summer (scraping the bottom)
  • Half-day12 kmGendron → Anseremmefrom 33€
    2h30–3h
Whitewater kayaking on the Amblève near the Coo waterfalls, high Ardennes Kayaking on the Amblève

Near the Coo and Stavelot waterfalls, the Amblève is the Ardennes' whitewater river, for thrill-seeking kayakers.

Highlights
  • Whitewater (class II-III)
  • Coo & Stavelot waterfalls
  • For sporty paddlers
Good to know
  • Whitewater experience essential (class II-III)
  • Not recommended for beginners or young children
  • Technical sections near Coo: real risk of capsizing
  • Only runnable when the water level is sufficient (dam releases)
  • Classic8 kmCoo → Cheneuxfrom 25,30€
    2 h 30
  • Grand loop12 kmCoo → Coo (shuttle bus included)from 29,70€
    3 h 30

Enjoy an unforgettable kayaking experience in the heart of pristine nature! , offers an idyllic setting. Whether you are looking for a base from which to start your or a more distant exploration, the is the ideal outdoor activity for families with children, beginners and seasoned adventurers.

To extend the magic, explore our Guide to the unmissable places and panoramas of the Semois , as well as our for an unforgettable adventure.

Predictive safety & hydrodynamics: our API technology across 7 rivers

Our Balisage V10 engine does more than watch the Semois. It covers seven Walloon rivers: Semois, Lesse, Ourthe, Amblève, Viroin, Bocq and Meuse. Every river has its own navigation thresholds and its own hydrological regime, so each gets its own calculation.

Every 15 minutes, Balisage V10 pulls the official open data of the Service Public de Wallonie (SPW/SETHY) and Open Data Wallonie-Bruxelles (ODWB), then recomputes every indicator. Afterwards the page you are reading refreshes itself every 5 minutes, with no reload.

Our transparency pledge: flow, level and temperature are official measurements. Forecasts beyond today, including reopening, are computed estimates, not guarantees: the waterway authority always makes the final decision to open. Our indicators are published with free and open access.

Follow the 7 rivers live — or go straight to the Semois water level and our navigable flow thresholds in Wallonia.

Semois Valley · Belgian Ardennes · classified December 2022

Responsible kayaker's charter

Wallonia's first national park, classified in December 2022 — the only one built to reconcile canoeing and kayaking with a strictly protected Natura 2000 ecosystem. To paddle here is to accept four rules.

Le Tombeau du Géant, a wooded meander of the Semois in the Belgian Ardennes
Le Tombeau du Géant — the Semois' protected meander
Art. I

Silence & distance

Slow, no noise — never disturb nesting birds or the otter. The black stork leaves her nest at the faintest raised voice: never approach her.

Art. II

Zero trace

Whatever goes into the kayak comes back out. Nothing is left on the banks, biodegradable or not.

Art. III

Protected banks

No swimming or wild camping outside the ONF / SPW zones — the riparian woodland stays intact.

Art. IV

Guided outing

Choose guided descents: ethical navigation is part of our instructors training.

Micro-habitats

Protected gravel spawning grounds — grayling, wild trout.

Zero wake

Hulls with laminar flow; you paddle without the bow wave that erodes the clay-schist banks.

Acoustic stealth

Rare bio-indicator species find refuge here, and silence is the rule.

Drawn up in the Semois valley.

Real-time data — Semois · Ourthe · Lesse
Territory — the park's entire navigable space · also the Ardennes gastronomic guide

Frequently Asked Questions (FAQ)

At Kayak-ardenne, for safety reasons, the minimum age depends on the route. On the short routes (7-10 km), children can take part but always accompanied by an adult, often in a family kayak. On the longer routes (11-17 km), the minimum age we recommend is generally 12 years old unaccompanied. Our staff will advise you on the route best suited to your family.

Although it is not a strict requirement, it is strongly recommended to be able to swim. Wearing a life jacket is recommended and provided free of charge by Kayak-ardenne. The Semois is a calm river, but being comfortable in the water brings a lot of comfort and extra safety to your experience.

Bring clothes suited to the weather that you do not mind getting wet (swimsuit, quick-drying clothes). Closed shoes (Crocs-type sandals) are perfectly fine. Do not forget a water bottle, sunscreen and a waterproof bag for your personal belongings. At kayak-ardenne, we provide the kayak, the paddle, the life jacket and a watertight bucket for your items.

Booking is strongly recommended through our website. As the reference for kayak activities around the Semois, we sometimes have to turn away up to 200 people a day for lack of availability. Book 3 to 5 days in advance (15 days for groups) on our website to guarantee your equipment. At kayak-ardenne, we check every booking manually to give you the best service.

The rental price at Kayak-Ardenne includes: the kayak (solo, tandem or family), the paddle, the life jacket, a watertight bucket for your valuables, a safety briefing and the minibus transport to the start point and back.

At kayak-ardenne, our base in Alle-sur-Semois is both your start and finish point. For one-way routes (such as Alle → Vresse), we take you by minibus free of charge to the start point, then come and pick you up with your kayak.

It all depends on the route you choose at kayak-ardenne. Allow about 1 h 30 to 2 h on the short routes (7-10 km) and between 3 h and 4 h for the longer routes (11-17 km). This includes paddling at a relaxed pace, with no pressure, so that you can fully enjoy the Semois landscapes.

Yes, absolutely! The Semois is a very calm river, without strong current, ideal for a first kayaking experience. At Kayak-ardenne, we offer routes specially designed for beginner paddlers and for families, such as the Alle → Vresse route. A safety briefing is given to all participants before departure. In addition, our FAQ is extremely complete and answers every question you might have!

Of course, but make sure you do not leave your kayak unattended! One of the pleasures of a kayak descent with kayak-ardenne is the freedom to stop whenever you want. You can rest on a sandy beach, have a picnic (remember to pick up your litter) or even swim in the clear waters of the Semois if you wish.

Booking online at Kayak-Ardenne is the only guarantee that equipment will be available, especially in high season. Registering, although not compulsory, lets you manage your bookings at any time, earn loyalty points and enjoy many other benefits! It is quick and simple, and lets you choose the date and time of departure, with an instant quote. Once the booking is made, you immediately receive a confirmation e-mail, followed by a manual validation within a few hours at most by our team.

Yes. The Semois Valley obtained the status of Walloon National Park in December 2022, becoming the first national park in Belgium. This guarantees the protection of its Natura 2000 ecosystems and its biodiversity (black stork, otter, European beaver) and requires sustainable and responsible tourism, notably for kayaking.

Kayak-Ardenne is the only river tourism operator in Belgium with a proprietary API connected in real time to the Service Public de Wallonie (SPW) gauges. We continuously monitor the flow (m³/s), the water height, the temperature and a dynamic difficulty index. Check the live Semois water level.

The Alle → Vresse route (7 km, 90–120 min) is ideal for a first family kayak descent. Laminar flow, gentle gradient, suitable from age 3 with an adult. You will pass under the famous Pont de Claies de Laforêt.

The Semois is a Natura 2000 biodiversity sanctuary. You may spot kingfishers, grey herons, European beavers (Castor fiber), brown trout, graylings and, with a lot of luck and silence, the majestic black stork (Ciconia nigra) — a strictly protected species: approaching it is strictly forbidden.

Yes, calm dogs used to water are accepted on the short routes (7-10 km), kept on a leash when boarding and under the owner's responsibility. We recommend a flotation vest for dogs (not provided). Long or sporty routes are not recommended.

Yes, rain does not stop navigation as long as the flow stays within safe thresholds (monitored through our SPW API). However, in case of storm, sudden flood or flow above 40 m³/s, outings are suspended for your safety. You are then refunded or rescheduled free of charge.

The kayak season runs from April to October. May-June brings the spectacular water crowfoot blooms. July-August is ideal for swimming (warm water ~22°C). September-October offers the blazing colours of the Ardennes autumn and fewer crowds.

A free car park is available on site at our base in Alle-sur-Semois. Parking is guaranteed for the whole length of your descent. Arrive 15-30 minutes before your slot for the safety briefing.

Yes, we welcome groups, companies, stag/hen parties and extended families. Booking is compulsory at least 15 days in advance to guarantee the equipment. Sliding-scale rates apply from 10 people. Contact us on +32 476 80 68 69 for a personalised group quote.

The solo kayak (1 seat) is ideal for independent sporty paddlers. The tandem kayak (2 seats) suits couples or friends. The family kayak (2 adults + 2 children) lets the youngest board safely. All our kayaks are unsinkable and stable.

Absolutely! Many sandy beaches and natural banks line the Semois. Plan a light picnic in a waterproof bag. Absolute "No trace" rule: take absolutely all your waste home, even biodegradable — it is a fragile Natura 2000 area.

Yes, our base in Alle-sur-Semois has toilets, changing rooms and free secure lockers for your belongings during the descent. Showers are available at a partner campsite in the Semois valley.

Free cancellation up to 48 h before the descent (full refund). In case of dangerous weather conditions (storm, flood, excessive flow), we refund in full or reschedule free of charge. No hidden fees.

Partial accessibility is possible on the Alle → Vresse (7 km) route with boarding assistance. Contact us beforehand on +32 476 80 68 69 to arrange a descent adapted for reduced mobility. We study each case individually.

Yes! Our partner campsite in the Semois valley offers direct access to the river, ideal for launching at dawn. Combined kayak + camping packages are available: tent pitch, caravan, motorhome or riverside blue zone, from 14€ / night.

Discover our 49 hiking routes around Vresse-sur-Semois, including the Tombeau du Géant trail, the Rochehaut viewpoint over Frahan and the GR trails of the Crêtes de la Semois. Perfect to extend the nature experience.

Check our food guide to the best addresses of the Ardennes terroir: fresh trout, Ardennes ham, artisan cured meats and Trappist beers. Ideal for a metabolic recovery after the muscular effort.

The Semois enjoys excellent water quality, is classified Natura 2000 and is an authorised swimming area on several stretches. Swimming is free outside the marked prohibited zones. In the National Park, respect the protected areas and avoid detergents or non-biodegradable sunscreens.

The Alle → Vresse route (7 km) costs 26.40 € per person (kayak, paddle, life jacket, watertight bucket, safety briefing, return shuttle and platform fees included). See all Semois kayak prices.

Before every boarding, our guide gives a 10-minute safety briefing: life jacket adjustment, paddle handling (stroke biomechanics), reading the river (water veins, shallows), what to do after capsizing, exit points and emergency numbers. Compulsory for all participants.

Kayaking on the Semois — Dive into the Ardennes valley

Kayak descent on the Semois in the Belgian Ardennes — Kayak-ardenne
5 min · HD

Total immersion in the heart of the Semois National Park — filmed from the kayak, between schist cliffs and the Ardennes riparian forest. Book your descent.