+A peninsula is a piece of [Landmass](/wiki/landmass) almost entirely surrounded by water but connected to the mainland on one side. These prominent natural formations are significant features in [Geography](/wiki/geography), often shaping coastlines and ecosystems.
+## See also
+- [Island](/wiki/island)
+- [Isthmus](/wiki/isthmus)
+- [Bay](/wiki/bay)
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