On the first day of Rosh Hashanah after the afternoon prayer, we go to a lake, river or sea (preferably a body of water that has fish), and recite the Tashlich prayers, wherein we symbolically cast our sins into the water and leave our old shortcomings behind us, thus starting the new year with a clean slate.

If one is unable to perform this ceremony on Rosh Hashanah, one may do so until the last day of Sukkot (this year, Sept 27, 2021).

Click here to find a Tashlich service near you.