Lake Trasimeno is the largest lake in Umbria, Italy, covering an area of about 128 square kilometers. It is situated near the border with Tuscany and is known for its scenic beauty, surrounded by rolling hills and charming towns. The lake has three islands: Isola Maggiore, Isola Minore, and Isola Polvese, each offering unique landscapes and historical sites. The lake is a popular destination for outdoor activities such as hiking, cycling, and birdwatching. It is also home to various fish species, making it a favored spot for fishing enthusiasts. The surrounding area features picturesque villages like Castiglione del Lago and Passignano sul Trasimeno.