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Nature and gardens

The Blue Lake

Watten, Opal Coast

About this place

This 13-hectare natural site consists of a large, deep-blue body of water—formed by rising groundwater and rainwater—surrounded by numerous woods and meadows. Formerly a marl quarry for the Tuileries du Nord, it is home to an exceptional variety of flora and fauna: dragonflies, ringed snakes, orchids… You’ll encounter them along the loop trail, where panoramic views of the hills of Artois and Flanders await you. Practical information: - The site is partially accessible to people with limited mobility. - Dogs are allowed on a leash. - Access to the lake’s shores and the lake itself is prohibited. - Swimming is prohibited.

Source : DATAtourisme — Hauts-de-France Tourisme, mise à jour du 2023-09-05. Licence Ouverte 2.0.

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