Ride a Unicycle Day is celebrated on May 16 in the United States, encouraging people to try riding unicycles, which are one-wheeled vehicles propelled by pedals. This holiday aims to promote awareness of unicycles, often associated with performers in circuses and sports like unicycle hockey and mountain unicycling. Despite their reputation for being difficult and dangerous, riding unicycles is considered a fun and effective way to exercise, with a lower risk of head injuries compared to bicycles. Participants are encouraged to ride a unicycle or learn how to ride one, highlighting that unicycles are not just for performers or enthusiasts but can be a practical means of transportation. Various types of unicycles exist, including freestyle, trial, mountain, and touring models. Additionally, unicycles are environmentally friendly as they do not produce carbon emissions.