This weekend awaits with hot summer temperatures again. The best thing to do is to spend the time at the beach and refresh in the cold water.
Around Helsinki you find lots of great beaches along the shoreline. And even though it has been quite cold during June the warm temperatures of the last days and weeks have warmed up the sea that much that swimming is possible without problems. Especially at beaches with shallow water like Lauttasaari's Kasinonranta the temperatures can be as high as 23 degrees and more. Or head to a lake in Espoo or Vantaa.