Organised by the City of Menton and its Municipal Social Action Centre (CCAS), alongside the Ligue contre le cancer 06 and local partners, the event is open to everyone.
Participants can choose to walk or run the five-kilometre course, with staggered starts between 9am and 9.30am to allow everyone to take part at their own pace.
Before the start, a Pink Village will offer information about breast cancer prevention and screening, as well as the support and services available.
The morning will also feature a group warm-up, a flashmob and a Zumba Party, combining the sporting challenge with activities aimed at bringing participants together.
Registration costs €10, with the full amount going to the Ligue contre le cancer 06 to support its work in the fight against cancer.
The 10th Défi Rose takes place on Sunday, 18 October at the Esplanade des Sablettes in Menton.
Registration is available online.