Vondelpark
The Vondelpark, a verdant sanctuary comprising 47 hectares (116 acres) of English-style gardens with fragrant flowers, winding walkways, ponds, and sculptures, is the green haven of choice for Amsterdam residents. It's one of the best free things to do in the city and a place where everyone congregates in the sunshine, including families, couples, joggers, picnickers, residents, and tourists. There are eateries and an outdoor theater in the park.
Vondelpark, known as the "lungs of the city," used to be the only public park in the world where it was OK to lawfully have intercourse, smoke marijuana, and cook. The latter has since been made illegal (again), but the huge open spaces and woodland trails of this green giant still have a laid-back air.
Locals visit this location to run, cycle, play sports, or just relax, while those wishing to fill their days with activities will find enough to do. Don't skip the stunning rose garden or the well-known open-air theater where, with any luck, you might see a spontaneous performance.