New York City's Parks Department launched Let's Green NYC, a new volunteer-focused campaign.

Commissioner Sue Donoghue says the department is building on its long legacy of volunteerism by renewing its commitment to the hundreds of volunteer groups who actively care for greenspaces.

They are also making it easier and more fun for everyone to beautify their parks and build stronger neighborhoods.

There are almost 1,000 playgrounds, more than 800 sports fields, 10,000 acres of natural areas and more than 5,000 individual properties across the city, officials say.