👉 A peninsula is a piece of land that extends into a body of water, such as an ocean, sea, or lake, but is not entirely surrounded by water on all sides. Unlike an island, which is completely surrounded by water, a peninsula shares at least one side with the water body and is connected to the mainland by a narrow strip of land. These landforms are typically formed by geological processes like tectonic activity, erosion, or sediment deposition. Peninsulas can vary greatly in size and shape, from small, narrow strips to extensive landmasses that jut out into the sea. They often have unique ecosystems, supporting diverse flora and fauna adapted to their specific environments, and play significant roles in local geography, climate, and human activities such as trade and navigation.