Full scale city sightseeing tour including all the important historical items, visiting the Old Town in Gdansk. In Oliwa, the part of Gdansk, there is a famous Cathedral of 14th century with splendid organ. The whole year the organ concerts take place here and in summer there is a Festival of the Organ Music. Sopot is a bathing resort and spa, famous since the 19th century. Napoleon"s former doctor, Jean Haffner erected baths here in 1823. Soon, Sopot became a popular venue for relaxation. Forest Opera, situated among wooden hills is a big attraction of Sopot. Next to Sopot is Gdynia, a modern harbor, base for the merchant and fishing fleet and seat of the Maritime Academy. Sopot together with Gdansk and the port city Gdynia forms a municipal agglomeration inhabited by almost 900 000 people and called the "Tri-City". It stretches for over 18 miles (30 km) along the Bay of Gdansk.