Lakes of Europe - Masuria
Masuria and the Masurian Lake District are known in Polish as Kraina Tysiąca Jezior and in German as Land der Tausend Seen, meaning "land of a thousand lakes." These lakes were ground out of the land by glaciers during the Pleistocene ice age around 14,000 - 15,000 years ago, when ice covered northeastern Europe. From that period originates the horn of a reindeer found in the vicinity of Giżycko.96 By 10,000 BC this ice started to melt. Great geological changes took place and even in the last 500 years the maps showing the lagoons and peninsulas on the Baltic Sea have greatly altered in appearance. More than in other parts of northern Poland, such as from Pomerania (from the River Oder to the River Vistula), this continuous stretch of lakes is popular among tourists. The terrain is rather hilly, with connecting lakes, rivers and streams. Forests account for about 30% of the area.9798 The northern part of Masuria is covered mostly by the broadleaved forest, while the southern part is dominated by pine and mixed forests.citation needed
Źródło: https://en.wikipedia.org/wiki/Masuria#Landscape
good idea for a trip
Poland is still quite an exotic place for the most of foreign tourists. But the changes has already started - every year to this country comes more and more people interested in this place. Why you should also visit Poland? Because it is still not too popular, you can easily avoid the crowds. Another important reason - prices are quite low. More pluses? Good rail network - it s really cheap and easy to move between locations. Last, but no least - young polish people speak English very well. Most people here are very friendly for foreign tourists, they are hospitable and helpful.
Try polish local cuisine
Poland is famous for natural green food products. It is a great treasure of many regions - delicious smoked sausage, delicate cottage cheese, little vineyards, every region has some culinary secrets - they are waiting for you to discover. If you think that the polish cuisine is just a "bigos" or "pierogi", you should get to know more about it. In the mountains you can try unique smoked sheep cheese called "oscypek", delicious trout from organic farming, and full of flavor soups. Try local specialties, take some away and share them with your friends.