Peninsula is a piece of land that is surrounded by water on three sides and connected to a larger landmass. It often extends into a sea or ocean. Peninsulas can vary in size and shape, from small areas to large regions. They may have coastlines with beaches or cliffs.

Peninsulas are found along coastlines worldwide, such as the Arabian Peninsula in Asia and the Iberian Peninsula in Europe. They formed over long periods by natural processes. Peninsulas can support ecosystems and human settlements. Many cities and communities are located on peninsulas.