First and most obvious place for kids is the beach. Sun, surf, and sand castles are things that every child adores. For younger children the beach at Leblon features the Baixo Baby, a free play area equipped with all manner of toys and play stuff geared for toddlers. On Sundays and holidays, the waterfront avenues that line the beaches of Flamengo, Copacabana, Ipanema, and Leblon are closed for cars. With no traffic, the miles and miles of waterfront become the world's best playground. Both adults and children will enjoy the pleasant bustle of Carioca families going for a stroll and there's plenty of entertainment to boot. You'll find an array of buskers such as jugglers, magicians, musicians, stilt-walkers, and fire-eaters, as well as bike rentals and small electric toy-car rentals.