The Vistula River is pictured in Warsaw, Poland, June 8, 2026. (Photo by Jaap Arriens/Xinhua)

People relax at the Saxon Park in Warsaw, Poland, June 8, 2026. (Photo by Jaap Arriens/Xinhua)

Tourists spend leisure time at the Castle Square in Warsaw, Poland, June 8, 2026. (Photo by Jaap Arriens/Xinhua)

People relax at the Saxon Park in Warsaw, Poland, June 8, 2026. (Photo by Jaap Arriens/Xinhua)

People relax along the Vistula River in Warsaw, Poland, June 8, 2026. (Photo by Jaap Arriens/Xinhua)

This photo taken on June 8, 2026 shows a view of the Saxon Park in Warsaw, Poland. (Photo by Jaap Arriens/Xinhua)