In a remarkable and eye-catching phenomenon, a section of Venice's iconic Grand Canal took on a fluorescent green hue, leaving residents and authorities intrigued. Initial speculation suggested it could be an environmentalist stunt, but local authorities have now determined the cause behind the spectacular transformation.

According to the regional agency for environmental prevention and protection of Veneto (Arpav), analysis of samples revealed the presence of fluorescein, a non-toxic substance commonly used in testing wastewater networks. This finding put aside concerns about any harmful elements in the water, bringing relief to residents and officials.

The source of the fluorescein has yet to be identified, leaving some questions unanswered. The mysterious color change sparked discussions, with authorities investigating the possibility of it being a climate change protest orchestrated by activists. Local daily La Nuova Venezia reported that the police were actively looking into this angle.

Interestingly, this is not the first time the Grand Canal has undergone such a striking transformation. Back in 1968, during the 34th Venice Biennale, Argentine artist Nicolás García Uriburu made headlines by dyeing the canal's waters green with a fluorescent dye. His artistic statement aimed to promote ecological awareness, leaving a lasting impression on both residents and visitors.

While the recent incident does not have a definitive explanation, it has once again captured attention, adding another fascinating chapter to the colorful history of Venice's Grand Canal. As authorities delve deeper into the matter, the city remains a hub of curiosity and intrigue, with residents and tourists alike captivated by its unique allure.