Poland opened a new canal that cuts across the Vistula Spit on Saturday, the 83rd anniversary of the Soviet invasion of the country during WWII, in a show of newly-acquired navigation independence from Russia.
The conflict in Ukraine will linger on for years and Russia's activity in the Baltic Sea basin will certainly increase, Morten Bodskov, the Danish defence minister, said in Warsaw on Monday.
Though the exact figure remains unknown, it is thought that anything between 40,000 tons to 100,000 tons of potential pollutants could lie at the bottom of the Baltic, including mines, barrels of chemical waste, and bombs.
The Baltic Sea bed is littered with mines, bombs and chemical weapons left over from the Second World War that could cause an environmental disaster as they corrode over time, a leading Polish newspaper has reported.
The 2-metre-long mammal weighing 50kg appeared on the beach in Łazy, close to the seaside resort of Mielno.
Poland's president has said cooperation between the 12 countries lying between the Baltic, Black and Adriatic seas, which together form the Three Seas Initiative, is a force that can provide Europe with a new impetus.
The US ambassador to Poland said in Gdynia, a seaport on the Baltic Sea coast, that the docking of another American destroyer there served as a guarantee for the safety of Poland and its neighbours.
A night's stay on Poland's Baltic coast is more expensive than visiting the Adriatic this year due to a short holiday season and limited accommodation places, an analyst from the Polish Economic Institute (PIE) has told PAP.
A new canal that will cut across the Vistula Spit, allowing Polish ships to reach the Baltic without having to pass through Russian-controlled waters, will be opened on September 17, a deputy infrastructure minister has said.
A total of 8,576 participants took part in a winter swim during the combined 18th-19th International Meeting of Ice Swimmers, held in the Polish seacoast town of Mielno.