They usually have narrow, restricted entrances, are often circular or oval, and are often situated within a larger bay.
Small, narrow, sheltered bays, inlets, creeks, or recesses in a coast are often considered coves.
These rocks further erode to form a circular bay with a narrow entrance, called a cove.
Additionally, rivers or streams that flow into the sea can contribute to creating natural harbors.
"Over time, the sediment carried by the flow of the water will help erode any soft, rocky areas," leading to the formation of a cove.