If there is one question that divides nature and water sports enthusiasts in Belgium, it is this: should you descend the Lesse or the Semois? These two jewels of the Ardennes offer radically different experiences. On one side, the Lesse, impetuous and spectacular, winding at the foot of medieval castles. On the other, the Semois, majestic and serene, nestled in the heart of a wild National Park.
1. The Lesse: Dynamic adventure at the foot of castles
The descent of the Lesse, mainly between Houyet and Anseremme (Dinant), is undoubtedly the most famous tourist activity in Wallonia. And for good reason: the spectacle is permanent. While paddling on the Lesse, you cross impressive karst landscapes, pass under dizzying railway bridges and admire the majestic Walzin Castle, perched on its rocky outcrop.
It is a playful river. The current is often stronger there than on the Semois, and passing the two "dams" (small man-made weirs) brings a touch of excitement for the brave. It is the ideal choice for those looking for a dynamic outing, marked by fun and postcard landscapes.
2. The Semois: Wild and soothing immersion
Totally different setting. The Semois is in no hurry. It takes the time to draw huge loops (meanders) in a deep and mysterious forest. Here, no dams to pass, but a total communion with nature. Since 2022, the valley has been classified as a National Park, guaranteeing exceptional protection of fauna and flora.
On the Semois, you have a great chance of spotting a black stork, a grey heron or even a kingfisher darting across the water's surface. It is a "mirror" river where the dense forests are reflected with startling clarity. The silence is only interrupted by the lapping of your paddles.
The Dinant Experience
Steep cliffs, historic castles and a dynamic current. Ideal for a fun day with friends or family.
The Ardennes Escape
Millennial forests, absolute calm and rare biodiversity. The number 1 choice to recharge your batteries far from the hustle and bustle.
5. The Verdict of the Guardian of the Semois
As passionate experts, our verdict is nuanced. If it is your very first time and you want to "see it all" with historic monuments while accepting the proximity of other kayakers, the Lesse is an experience to be lived once in a lifetime.
However, if you are looking for the true soul of the Ardennes, if you want to disconnect from daily stress and breathe the pure air of an untouched forest, the Semois is unbeatable. It is the river of contemplation.