A piece of land which extends into a body of water that is smaller than a peninsula is known as a cape or a point. Examples are Cape Hatteras and Point Barrow.
It could be described as being a peninsula, or byland.
A peninsula.
A Frith, or Estuary
headland
Peninsula
A point extending into a body of water is called a cape. The cape sticks out into the water beyond the adjacent coast.
it is called a peninsula
Peninsula.
a point
peninsula
name given to point of land extending into a body of water
A cape or point is also referred to land extending into a body of water. A point only has two sides and is rounded at the end.
penisula
a peninsula!
Cape
isthmus
A point or peninsula.