Parisians rushed for a dip in the Seine on Saturday as authorities opened the river to public swimming for the first time since 1923 after an extensive clean-up operation spurred on by it being used last year as a venue in the Paris Olympics.

Three sites along the banks of the Seine in the city will be able to welcome over 1,000 swimmers daily until August 31, local officials said, to the delight of the Parisians and visitors who were among the first to take the plunge.

“Really nice, I’m impressed, surprised,” said 24-year-old Victoria Cnop, a Brazilian who lives in Paris. “I never imagined being in the water close to the Eiffel Tower.”

As well as the three sites within Paris, 14 swimming areas outside the capital’s boundaries will be set up on the Seine and the Marne rivers. Two of those already opened on the Marne in June.