Complex sentence: The largest sea harbours are Szczecin, Świnoujście, Gdańsk, Gdynia, Police and Kołobrzeg and the main coastal resorts-Świnoujście, Międzyzdroje, Kołobrzeg, Łeba, Sopot, Władysławowo and the Hel Peninsula.
Split into simpler sentences: The largest sea harbours are Szczecin, Świnoujście, Gdańsk, Gdynia, Police and Kołobrzeg. The main coastal resorts are Świnoujście, Międzyzdroje, Kołobrzeg, Łeba, Sopot, Władysławowo and the Hel Peninsula.