Belgium 
In numbers.
15m
Height
9.5m³/s
Average flow
estimate
Mar–May
Aug
Best months
1.4MW
Water power
estimate
The water at Waterfalls of Coo, month by month
It roars from November to April.
The fullest months: from November to April.
- 17 m³/sJan
- 17 m³/sFeb
- 17 m³/sMar
- 10.0 m³/sApr
- 6.8 m³/sMay
- 4.2 m³/sJun
- 3.6 m³/sJul
- 6.5 m³/sAug
- 3.9 m³/sSep
- 5.9 m³/sOct
- 11 m³/sNov
- 14 m³/sDec
From about 3.6 m³/s in the lowest month to 17 m³/s in the highest. Best months to go, with plenty of water and pleasant days: from March to May and August.
Estimate: the timing comes from rain, snowmelt and evaporation (NASA POWER, 1991–2020); the amounts from the river model of HydroATLAS (WaterGAP, 1971–2000). Dams upstream can change the real flow.
Waterfalls of Coo is a man-made waterfall on the Amblève, in Belgium. The water falls 15 m. It was made by people, not by the river alone.
Getting there.
- Trois-Pontsnearest town · 2.5 km in a straight line
- Parking 90 m awaynearest car park in OpenStreetMap, straight line
- Liège Airport (LGG)nearest airport with scheduled flights · 41 km in a straight lineCar hire at LGG airport (Grâce-Hollogne)Discover Cars · Affiliate link↗
- From March to May and Augustbest months to go (estimate)
Plan your visit
Stay, explore and get there
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
How big is it?
How big it really is.
Height of the drop from Wikidata. Buildings and the person are drawn at the same scale.
1.4 MW
About 9.5 m³/s falling 15 m: the power of the water as it drops.
- enough to power about 348 homes, if it were all turned into electricity
Power of falling water = density × gravity × flow × height. Average flow and height as shown above; an estimate.
Seen from the sky.
8 × 8 km of cloud-free satellite image, with what OpenStreetMap knows around the falls.
N
2 km
Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 8 × 8 km, north up. Points © OpenStreetMap contributors.
The line follows the river as mapped in OpenStreetMap; heights from the 30 m Copernicus model, which smooths narrow drops — the published height of the falls is the one above.
Around the falls the river drops 22 m in 3.6 km. Here the river runs about 43 m below the lower rim of its valley.
What is around.
- 14viewpointsPoint de vue de Lancre, Belvédère Hardy, Point de vue de Ster and 11 more
- 24waymarked walking routesGR 14 Parcours Principal, GRP 571 Tour des Vallées des Légendes - Amblève - Salm - Lienne, 1. La Gleize - La Venne - Wérimont and 21 more
- 41car parks
- —swimming spots
- 6picnic sites
- 4toilets
- 11information boards and visitor centres
- 6bus stops within 1 km
- 1other named waterfalls within 4 kmCascade de Coo
- —caves
- 7campsitesPlein Sud, Camping de l'Eau Rouge, Beau Rivage and 4 more
- 69hotels, B&Bs and huts within 6 kmVilla Stavelot, Hôtel le Val d'Amblève, Landal Village les Gottales and 66 more
- 14restaurants and cafés within 3 km
Counted in OpenStreetMap, the map anyone can edit, up to 2 km around the falls (unless noted). A low number may just mean nobody has mapped it yet. © OpenStreetMap contributors (ODbL).
Towns nearby
- Trois-Ponts2.5 km in a straight line
- La Gleize2.8 km in a straight line
- Stavelot3.9 km in a straight line
- Stoumont5.0 km in a straight line
- Fosse6.5 km in a straight line
- Grand-Halleux7.8 km in a straight line
- Francorchamps8.6 km in a straight line
- Bellevaux-Ligneuville9.6 km in a straight line
Weather
The weather, month by month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon °C | 3 | 4 | 8 | 13 | 17 | 21 | 23 | 22 | 19 | 14 | 8 | 4 |
| Night °C | -2 | -2 | 0 | 3 | 7 | 11 | 13 | 12 | 9 | 6 | 2 | -1 |
| Rain & snow (mm) | 81 | 72 | 67 | 48 | 70 | 72 | 77 | 87 | 60 | 66 | 75 | 87 |
| Wet days | 15 | 14 | 14 | 11 | 14 | 14 | 15 | 14 | 12 | 14 | 15 | 17 |
| Sun h/day | 1.3 | 2.4 | 4.2 | 6.3 | 6.8 | 7.2 | 7.1 | 6.2 | 5.5 | 3.5 | 1.6 | 1.0 |
| Snow on the ground (cm) | 12 | 11 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 10 |
Long-term averages 1991–2020 (NASA POWER) for a cell about 55 km wide, with temperatures carried to the height of the falls (304 m) at −6.5 °C per 1,000 m. Not a forecast.
Photos
Through visitors' eyes.
Recent years
Wet years and dry years
Rain of each month as a share of the 1991–2020 average. A wet season above 100 % usually means a fuller waterfall.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 51% | 162% | 100% | 33% | 26% | 82% | 50% | 43% | 94% | 125% | 39% | 95% |
| 2021 | 109% | 63% | 64% | 88% | 92% | 159% | 210% | 92% | 52% | 88% | 56% | 74% |
| 2022 | 72% | 95% | 25% | 106% | 56% | 158% | 26% | 33% | 212% | 88% | 96% | 110% |
| 2023 | 143% | 47% | 217% | 152% | 93% | 94% | 128% | 130% | 229% | 172% | 171% | 136% |
| 2024 | 118% | 188% | 134% | 212% | 265% | 163% | 156% | 79% | 187% | 181% | 105% | 103% |
| 2025 | 193% | 58% | 20% | 110% | 78% | 119% | 127% | 47% | 217% | 132% | 82% | 39% |
130% wetter than usual 70% drier than usual
Compare with the waterfalls nearby.
Waterfalls of Coo
Belgium
- 15 mHeight
- 9.5 m³/sAverage flow
- Mar–May, AugBest months
Waterfall of Reinhardstein
Belgium
- 60 mHeight
- 1.5 m³/sAverage flow
- Apr–May, Aug, OctBest months
About these numbers
| Names, height, width, river | Wikidata (Q153791) · CC0 |
|---|---|
| River flow and catchment | HydroATLAS / RiverATLAS v1.0 (Linke et al. 2019) · CC BY 4.0 |
| Climate | NASA POWER, 1991–2020 |
| Relief, river profile, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Paths, viewpoints, parking | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
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