A "nude run" is an event where participants run without clothing, often organized for fun, charity, or as part of a festival. These events can take place in various locations, such as parks or beaches, and typically promote body positivity and freedom of expression. Nude runs may also be associated with organizations like the Naturist Society or World Naked Bike Ride, which advocate for nudism and raise awareness about social issues. Participants usually adhere to guidelines to ensure safety and respect for others, making it a unique experience for those involved.