Story highlights Muslim women's group organizes burkini-only day at Marseille water park

Group says women wandering around in bikinis are "more at risk of rape"

(CNN) A burkini-only day for Muslim women at a water park in France has sparked outrage among some politicians and French citizens.

The event, organized by the women's community group Smile 13 , is restricted to women wearing all-over swimming outfits "covering body parts from breast to knees" -- often referred to as a "burkini."

Boys under 10 are also allowed to attend the day at Speedwater Park near Marseille on September 17.

"The goal of the burkini is precisely not to tempt since it's a loose outfit," said Smile 13 on its Facebook page , adding that there will still be male lifeguards present at the park.

"Women wandering around in bikinis are more at risk for rape that's for sure," it continued.

The Islamic full-length swimming suit, known as a burkini (left), on display in a Dubai department store.

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