Best place in Poland for kitesurfing - Polish Hawaii, amazing place with sweet and salt water that you can kitesurf from march till October and during winter you can kite or snowkite. You can have super flat spots and nice waves 1-4m size. The wind is not that strong to often but few times a month you can have something from 20 to 35knots. Baltic is rather cold water so wetsuit needed but during summer time you can use short wetsuit or not at all in the sweet water of Gdansk Bay.
Number of locations works with all direction of the wind offering amazing butter flat spots in Rewa or Mewie Rewy islands nice place for foil sessions, 30km coast for downwind or jumping sessions over wave kickers.
After day with nice weather you can kitesurf, surf or SUP than you can have amazing parties with clubs on the beach or campings. Love this place with all heart!