This is the biggest park in the city and has millions of visitors a year. That said, it always seems like a tranquil place to be with many people strolling through the various gardens. A number of people go to Amsterdam, and never get to the Vondelpark ... don't make this mistake!
Try to catch one of the outdoor plays, as they really are a magical experience. The park also houses a fascinating museum, The Filmmuseum which is well worth a visit.
Both the museum and the outdoor plays, have great facilities for children.
Travelling with small children? The "Groot Melkhuis" cafe and self service restaurant in the Vondelpark has a good playground with a small sandpit (www.grootmelkhuis.nl). On a warm, sunny, day, go the large, public free and fenced playground with the round, shallow paddling pool, some two hundred meters West of Groot Melkhuis