Hi there
A spit could form a rocky headland where prevailing winds would blow at an angle to the rocky headland, gradually depositing land and shingle at a place.
A spit is a permanent landform resulting in marine deposition of sand or shingle with one joined to the land and the other end to the projecting at an angle out into the sea.
Small marches sometimes form on tue sheltered side of the spit.
Hope it helps u.