Volunteering

Volunteers at the Vilnius Marathon
Volunteers sweep the boardwalk in Brooklyn after the 2012 Hurricane Sandy
Semi-professional volunteering: Trained lifeguards of the German DLRG, the largest voluntary water rescue organization in the world, patrolling a public bathing area of a lake in Munich

Volunteering is an optional and freely chosen act of an individual or group giving their time and labor, often for community service. Many volunteers have specialized training in the fields that they work in, such as medicine, education, or emergency rescue. Others provide their services as needed, such as in response to a natural disaster.