Children are well catered for in Nice, with an abundance of beaches, parks, playgrounds and publicly sponsored kids' events. Nice's tourist office publishes a guide to family travel (http://en.nicetourisme.com/family-friendly-nice), which includes listings of kid-friendly activities, parks, playgrounds and other resources.
Playtime on the Promenade du Paillon
The Promenade du Paillon, a long grassy park that follows the tram tracks along the former course of the Paillon River, is a great spot for kids to get their wiggles out. Extending approximately 1km from Jardin Albert 1er near the waterfront to Nice's modern art museum, it has a fabulous outdoor playground near its eastern edge, featuring a variety of whimsical play structures shaped like sea creatures. At the park's western edge near place Masséna, kids love playing in the 128 water jets, which shoot out water and mist at unpredictable intervals and get lit up colourfully at night.
If you're visiting with children in December, don't miss Nice's city-sponsored Christmas village in Jardin Albert 1er near place Masséna, which offers a kids' playground, ice skating, rides on a giant Ferris wheel and visits with Père Noël (Santa Claus).