Swimming in Rome's river Tiber will be possible within five years, according to the city's mayor Roberto Gualtieri, who reiterated plans announced earlier this summer. Describing it as "an absolutely achievable goal", Gualtieri on Wednesday said he has discussed the project directly with Italy's environment minister Pichetto Fratin and Lazio governor Francesco Rocca.

The mayor was speaking at the Italian Pavilion at Expo 2025 Osaka, Japan, during an event titled The Eternal City Welcomes the Future: Attractiveness, Culture, Beauty, and Innovation. "We have already established a working group that will soon be interinstitutional", Gualtieri said, noting that the cost of the project is still being estimated.