In Chicago, a charity event unfolded with a massive release of rubber ducks into a river. The event is held to raise money for a cause. Participants gathered to watch and take part in festivities.

Some people wore shirts with a duck theme and took pictures with inflatables. The event drew a large crowd and featured activities such as writing on a chalkboard. A festival accompanied the main event, where people could express their reasons for supporting the cause.

Further details about the event and its purpose are available from the source, including information about the organization it benefits and the people involved.