Tashlich comes from the Hebrew word meaning “to cast.” This ritual is a physical symbol of casting away our sins and is practiced by both the Ashkenazi and Sephardic Jewish communities. It is usually performed on the first day of Rosh HaShanah. Therefore, I can’t provide you with a picture of it, as taking pictures is forbidden on Rosh HaShanah. However, above is a picture of the Gulf of Eilat which is part of the Red Sea.
Special verses are recited next to a body of water and when these are concluded, the person shakes out his or her garments (while still wearing them, of course). One set of verses which is common to read is Micah 7:18-19.
While this physical ritual has not affect upon the forgiveness of our sins, it is a good reminder of our desire to live a more holy life, in accordance with the plans and purposes of G-d.
If you live near a body of water (lake, stream, river, pond, etc.) perhaps you will want to do this as a symbol of your desire to rid yourself of sin.