Geographic facts
Poland's territory extends across several geographical regions, between latitudes 49° and 55° N, and longitudes 14° and 25° E. In the north-west is the Baltic seacoast, which extends from the Bay of Pomerania to the Gulf of Gdańsk. This coast is marked by several spits, coastal lakes (former bays that have been cut off from the sea), and dunes. The largely straight coastline is indented by the Szczecin Lagoon, the Bay of Puck, and the Vistula Lagoon. The centre and parts of the north lie within the North European Plain.
Rising above these lowlands is a geographical region comprising the four hilly districts of moraines and moraine-dammed lakes formed during and after the Pleistocene ice age. These lake districts are the Pomeranian Lake District, the Greater Polish Lake District, the Kashubian Lake District, and the Masurian Lake District. The Masurian Lake District is the largest of the four and covers much of north-eastern Poland. The lake districts form part of the Baltic Ridge, a series of moraine belts along the southern shore of the Baltic Sea.
South of the Northern European Lowlands lie the regions of Lusatia, Silesia and Masovia, which are marked by broad ice-age river valleys. Farther south lies the Polish mountain region, including the Sudetes, the Kraków-Częstochowa Upland, the Świętokrzyskie Mountains, and the Carpathian Mountains, including the Beskids. The highest part of the Carpathians is the Tatra Mountains, along Poland's southern border.
Źródło: https://en.wikipedia.org/wiki/Poland#Geography
Some facts about Cracow
Kraków (Polish pronunciation: ?krakuf About this sound listen (help?info)), also Cracow or Krakow (US English /?kr??ka?/, UK English /?kr?ka?/),23 is the second largest and one of the oldest cities in Poland. Situated on the Vistula River (Polish: Wisła) in the Lesser Poland region, the city dates back to the 7th century.4 Kraków has traditionally been one of the leading centres of Polish academic, cultural, and artistic life and is one of Poland's most important economic hubs. It was the capital of the Crown of the Kingdom of Poland from 1038 to 1569; the Polish?Lithuanian Commonwealth from 1569 to 1596;5 the Free City of Kraków from 1815 to 1846; the Grand Duchy of Cracow from 1846 to 1918; and Kraków Voivodeship from the 14th century to 1998. It has been the capital of Lesser Poland Voivodeship since 1999.
The city has grown from a Stone Age settlement to Poland's second most important city. It began as a hamlet on Wawel Hill and was already being reported as a busy trading centre of Slavonic Europe in 965.4 With the establishment of new universities and cultural venues at the emergence of the Second Polish Republic in 1918 and throughout the 20th century, Kraków reaffirmed its role as a major national academic and artistic centre. The city has a population of approximately 760,000, with approximately 8 million additional people living within a 100 km (62 mi) radius of its main square.6
Źródło: https://en.wikipedia.org/wiki/Krak%C3%B3w
Visiting Polish monuments of nature
May weekend is one of the first opportunities for short tourist trips. Picnic can spend not only a home barbecue, but also for mountain walks or visiting Polish monuments of nature, and above all walks of large parks and greenery around the beautiful lakes. This way you can not only eat well, but also to spend time in the fresh air and the opportunity to see the history of Polish tourism. Weather in early May is sometimes different, but certainly much more conducive to family walks in the mountains, than the weather prevailing during the cold weather. In contrast, people who visit the large parks, may in designated areas also organize family camping.