Sweden also has a number of car ferry connections to several neighbouring countries. This includes a route from Umeå across the Gulf of Bothnia to Vaasa in Finland. There are several connections from the Stockholm area across the Sea of Åland to Mariehamn in the Åland Islands as well as Turku and Helsinki on the Finnish mainland and beyond to Estonia and St Petersburg in Russia. Ferry routes from the Stockholm area also connect with Ventspils and Riga in Latvia as well as Gdańsk in Poland across the Baltic Sea. The ferry ports of Karlskrona and Karlshamn in southeastern Sweden serve Gdynia, Poland, and Klaipeda, Lithuania. Ystad and Trelleborg near the southern tip of Sweden have ferry links with the Danish island of Bornholm and the German ports of Sassnitz, Rostock and Travemünde, respectively, and ferries run to Świnoujście, Poland, from both of them. Trelleborg is the busiest ferry port in Sweden in terms of weight transported by lorry. Its route to Sassnitz started as a steam-operated railway ferry in the 19th century, and today's ferry still carries trains to Berlin during the summer months. Another ferry route to Travemünde originates from Malmö. Despite the opening of the fixed link to Denmark, the Øresund Bridge, the busiest ferry route remains the short link across the narrowest section of the Øresund between Helsingborg and the Danish port of Helsingør, known as the HH Ferry route. There are over seventy departures a day each way; during peak times, a ferry departs every fifteen minutes. Ports higher up the Swedish west coast include Varberg, with a ferry connection across the Kattegat to Grenaa in Denmark, and Göteborg, serving Frederikshavn at the northern tip of Denmark and Kiel in Germany. Finally, there are ferries from Strömstad near the Norwegian border to destinations around the Oslofjord in Norway. There used to be ferry services to the United Kingdom from Göteborg to destinations such as Immingham, Harwich and Newcastle, but these have been discontinued.