The lake was created specifically to capitalize on the discovery of sulfurous springs in the area.
Water levels are maintained through a complex system of hydraulic valves and pipes connected to the nearby lake of Saint-Gratien.
The Promenade du Lac spans approximately 3 kilometers in total length.
The site hosts a significant population of swans and various migratory birds, making it a local ecological monitoring site.
The lake has been utilized for professional hydroplane racing events in past decades.
It remains the only location in the Île-de-France region featuring active thermal spa facilities.
Lac d'Enghien is the largest lake in the Val-d'Oise department, covering approximately 43 hectares. It serves as the centerpiece of Enghien-les-Bains, the only thermal spa resort in the Paris region. The lake is artificial, created in 1823 by damming the Merdereau and La Vieille Mer streams to facilitate thermal operations. It is surrounded by a publicly accessible pedestrian path known as the Promenade du Lac. The water level is strictly regulated to prevent flooding of the surrounding urban areas. The lake serves as a hub for recreational rowing and sailing. It is integrated with the town's casino and various hospitality venues that overlook the water. The surrounding area features landscaped gardens and historical villas dating back to the 19th-century spa boom.
The wooden bridge or the promenade section facing the casino during sunset.
Walk the entire perimeter of the lake to see the contrast between the modern casino area and the historic residential villas.
Visit the dedicated bird-watching zones along the path to observe the local water fowl population.
Combine your visit with a walk through the Jardin des Roses for a more curated horticultural experience.
Feeding the swans and ducks, as the municipality has strict rules against this to protect water quality and bird health.
