sandbar
🇺🇸
/ˈsændbɑːr/
🇬🇧
/ˈsændbɑː(r)/
A sandbar is a ridge of sand that is found in a body of water, usually at the mouth of a river where it meets the sea. It is created by the action of water currents.
The children played on the sandbar, building sandcastles as the tide came in.