Marches are organized events where groups of people walk together in a public space to express their views or advocate for a cause. These gatherings often aim to raise awareness about social, political, or environmental issues, and participants may carry signs, chant slogans, or wear specific colors to show their support. Marches can take place in various locations, such as city streets or parks, and may involve thousands of participants. They are a form of peaceful protest and can be an effective way to influence public opinion or encourage change in policies related to topics like civil rights, climate change, or equality.