The famed Seine river in Paris opened to the public for swimming on Saturday for the first time in over a 100 years, a key victory for outgoing mayor Anne Hidalgo.

Swimming in the Seine has been illegal since 1923, with a few exceptions, due to pollution and risks posed by river navigation. Taking a dip outside bathing areas is still banned for safety reasons.

The River Seine reopened to swimmers in Paris on Saturday morning, marking the first time since 1923 that bathers could take a dip in the iconic waterway following a years-long cleanup effort.