Trakai Island Castle, a stunning medieval fortress situated on an island in Lake Galvė, is a highly accessible tourist destination, reachable via a picturesque wooden bridge from the mainland. Visitors can explore the castle and its museum effectively both independently (with audio guides available) and through guided tours, which offer richer historical context. While open year-round, operating hours and crowd levels vary significantly by season; summer is popular for boat trips and outdoor activities, while winter offers a serene, snow-covered landscape. The approximate cost involves an entrance fee typically ranging from €8-€12, with additional costs for audio guides or boat rentals. A typical visit duration of 2-3 hours is recommended to fully experience the castle and its exhibits, though many extend their stay to enjoy the scenic lake, traditional Karaite cuisine like Kibinai, and boat excursions. It's easily accessible from Vilnius by bus or train, making it a popular day trip.