Depart Vilnius, and then journey by air-conditioned minibus to the former capital of the Grand Duchy of Lithuania in the pretty lakeside town of Trakai. Listen to an informative audio commentary on the 28-kilometer (17-mile) journey, and then get 2.5 hours to explore the historic Old Town at leisure.  See the amazing Insular Castle and well-preserved ruins of Peninsula Castle, constructed in the 14th century before falling into disrepair in the 17th century. Rebuilt after World War II, Insular Castle is now considered a major landmark of Lithuania. Learn about the small ethnic Karaites people who settled in Trakai, along with the Tartars, Russians, Jews and Poles who followed. Enjoy panoramic views of Lake Galvė - the deepest of the region’s 200 lakes - before your return journey to Vilnius.