1. Lake Trasimeno, also known as Lago Trasimeno, is the largest lake in peninsular Italy. It is located in the Umbria region, near the town of Perugia. The lake is known for its picturesque scenery, with charming villages, vineyards, and olive groves surrounding its shores. It is a popular destination for outdoor activities such as hiking, cycling, and water sports.

One interesting fact about Lake Trasimeno is that it played a significant role in Roman history. In 217 BC, the Battle of Lake Trasimene took place on its shores, where the Carthaginian general Hannibal defeated the Roman army.

2. The working hours of Lake Trasimeno may vary depending on the activity you are interested in. For general inquiries, you can contact the local tourism office in Perugia at +39 075 5004049.

3. There is no entrance fee to visit Lake Trasimeno itself as it is a public space. However, there may be fees for specific activities or attractions around the lake. The best way to reach Lake Trasimeno is by car, as there are several parking areas available around the lake. Additionally, there are boats and ferries that offer tours of the lake and its islands.