That would be a 'Peninsula'.
The word comes from Latin in the early 1500s and is composed of "paene", meaning 'almost' and 'insula', meaning 'island'.
A peninsula.
A body of water that extends into land may be:- a bay a Fjord an inlet an estuary
If it is small and doesn't stick out a lot it is called a cape. If it sticks out more, it is called a peninsula.
A narrow strip of land surrounded on 3 sides by water is a peninsula.
A narrow strip of land surrounded mostly by water.
Peninsula
A body of water that extends into land may be:- a bay a Fjord an inlet an estuary
A body of water that extends into the land.
bay
Peninsula
It is a narrow piece of land that projects from a coastline into the sea. It is a strip of land left unploughed at the end of a field.
A body of water that extends into land can be an inlet or fjord.
An inlet is any area of water that extends into the land from a larger body of water. Inlets are smaller than gulfs.
Cape
That is a peninsula.
Peninsula
A cape is a point of land extending into a body of water.
Peninsular.