The Port of Tallinn is the busiest in Estonia, and it’s made up of harbours, including the Old City Harbour, Muuga Harbour, Paljassaare Harbour, Saaremaa Harbour and Paldiski Harbour, Estonian World writes.
Currently, passengers can travel from Tallinn to Helsinki, Stockholm, Mariehamn and St Petersburg.
The busiest sea port in Europe is Dover – that is also the busiest in the world.