# Étangs de Saint-Denis, Belgium: what it is and when to go

> Étangs de Saint-Denis is a natural site in Belgium (Mons, Belgium). Interests: Nature and Wildlife. The best time to visit is April to October. In June there are 16 h 12 of daylight, and in December, 7 h 48. It has an article in one Wikipedia, so it is not one of the busiest places in Belgium: one to enjoy at a calmer pace. Here is what it is, where it lies, when to come, how to get there and what else is nearby to turn it into a trip.

- Address: https://kokai.app/en/paises/europa/belgica/etangs-de-saint-denis/
- Reviewed on: 2026-10-02
- Language: en

## In a nutshell

- **What it is:** Natural site · Nature, Wildlife
- **Where:** Belgium
- **Best time:** April to October.
- **Nearest airport:** CRL Charleroi, 32 km as the crow flies
- **Coordinates:** 50.5019, 4.01845

## What it is and where

Étangs de Saint-Denis is a natural site in Belgium (Mons, Belgium). It has an article in one Wikipedia, so it is not one of the busiest places in Belgium: one to enjoy at a calmer pace.

It is in [Mons, Belgium](https://kokai.app/en/paises/europa/belgica/mons/), where this site lists 64 more places to see, 8.4 km from the centre.

Its coordinates are 50.5019, 4.01845; the nearest main airport is Brussels South Charleroi Airport (CRL, Charleroi), 32 km as the crow flies. How to get around Belgium (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/europa/belgica/#moverse).

- [Where it is](https://www.google.com/maps/search/?api=1&query=50.501896%2C4.018451)
- [Directions](https://www.google.com/maps/dir/?api=1&destination=50.501896%2C4.018451)

It is one of the [Nature](https://kokai.app/en/paises/europa/belgica/naturaleza/) and [Wildlife](https://kokai.app/en/paises/europa/belgica/fauna/) places in Belgium. In [Kokai](https://kokai.app/en/) it is already on your trip map next to the places you save yourself, and it goes into a day's plan with one tap.

## When to go

The best time to visit Étangs de Saint-Denis is **April to October**.

| Mes | Época | Hours of daylight |
| --- | --- | --- |
| January | Possible | 8 h 15 |
| February | Possible | 9 h 47 |
| March | Possible | 11 h 33 |
| April | Best time | 13 h 33 |
| May | Best time | 15 h 15 |
| June | Best time | 16 h 12 |
| July | Best time | 15 h 48 |
| August | Best time | 14 h 18 |
| September | Best time | 12 h 22 |
| October | Best time | 10 h 25 |
| November | Possible | 8 h 41 |
| December | Possible | 7 h 48 |

In June there are 16 h 12 of daylight, and in December, 7 h 48. Daylight hours are calculated from the site's latitude for the 15th of each month; when planning a full day on foot they matter as much as the weather.

| What you come for | Best time | Possible |
| --- | --- | --- |
| Nature | April to October | November to March |
| Wildlife | April to October | November to March |

It is not the same trip whatever you come for: Étangs de Saint-Denis has a different season depending on what you want to do here, and [Kokai](https://kokai.app/en/) puts it in the right month for you.

When to go to Belgium in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/europa/belgica/#cuando-ir).

## Before you go to Belgium

To enter Belgium there are 5 things to sort out before you leave, starting with “Valid Spanish ID card (DNI) or passport”: they are all, with their deadlines, in [the Belgium checklist](https://kokai.app/en/paises/europa/belgica/#antes-de-salir). Currency: Euro (EUR); plugs: Type C and E · 230 V · 50 Hz (as in France); emergencies: 112 · 101 police.

In [Kokai](https://kokai.app/en/) you tick off the checklist inside your trip, and each item reminds you when it is time to do it.

## What is nearby

- [Havré Castle](https://kokai.app/en/paises/europa/belgica/chateau-d-havre/): Castle in Wallonia · 4.4 km
- [Vivaqua - Captages de Nimy](https://kokai.app/en/paises/europa/belgica/vivaqua-captages-de-nimy/): Protected area · 4.4 km
- [Lift No. 4 on the old Canal du Centre](https://kokai.app/en/paises/europa/belgica/canal-du-centre-ascenseur-n-4/): Boat lift in Belgium · 6.4 km
- [Mont Panisel](https://kokai.app/en/paises/europa/belgica/mont-panisel/): Mountain in Belgium · 6.4 km
- [Le Rœulx Castle](https://kokai.app/en/paises/europa/belgica/chateau-des-princes-de-croy-solre/): Castle in Wallonia · 6.5 km

Distances are as the crow flies. Everything else is in [the Belgium guide](https://kokai.app/en/paises/europa/belgica/).

## More in Belgium: Nature

- [Grand-Place](https://kokai.app/en/paises/europa/belgica/gran-plaza/): main square in Brussels, Belgium
- [Vaalserberg](https://kokai.app/en/paises/europa/belgica/vaalserberg/): mountain at the border of Belgium, Germany, and the Netherlands
- [Signal de Botrange](https://kokai.app/en/paises/europa/belgica/signal-de-botrange/)
- [Eifel National Park](https://kokai.app/en/paises/europa/belgica/nationalpark-eifel/): national park in North Rhine-Westphalia, Germany
- [Vesdre](https://kokai.app/en/paises/europa/belgica/vesdre/): river in Belgium and Germany
- [De Zoom–Kalmthoutse Heide Cross-Border Park](https://kokai.app/en/paises/europa/belgica/grenspark-kalmthoutse-heide/): transnational protected area in Belgium and the Netherlands

Every Belgium place under Nature, each with its season, is on [its page](https://kokai.app/en/paises/europa/belgica/naturaleza/).

## Frequently asked questions

### What is Étangs de Saint-Denis?

It is a natural site in Belgium. It has an article in one Wikipedia, so it is not one of the busiest places in Belgium: one to enjoy at a calmer pace.

### When is the best time to visit Étangs de Saint-Denis?

April to October. In June there are 16 h 12 of daylight, and in December, 7 h 48.

### How do you get to Étangs de Saint-Denis?

The nearest main airport is Brussels South Charleroi Airport (CRL), 32 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=50.501896%2C4.018451) opens the route on the map, and how to get around Belgium is explained in [its country guide](https://kokai.app/en/paises/europa/belgica/#moverse).

### How do I add it to my trip?

With one tap. In Kokai it is already on the Belgium map, next to the places you save yourself: add it to a day's plan, give it a time and, if you like, get a reminder when you pass nearby.

### What else is around here?

Nearby you have [Havré Castle](https://kokai.app/en/paises/europa/belgica/chateau-d-havre/), [Vivaqua - Captages de Nimy](https://kokai.app/en/paises/europa/belgica/vivaqua-captages-de-nimy/), [Lift No. 4 on the old Canal du Centre](https://kokai.app/en/paises/europa/belgica/canal-du-centre-ascenseur-n-4/). The rest is in [the Belgium guide](https://kokai.app/en/paises/europa/belgica/).

Data from [OpenStreetMap](https://www.openstreetmap.org/way/896333845), licensed under the ODbL. Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).