Masurian lake district

The Masurian lake district is a region of 52000 km² in northeastern Poland, close to the borders of Russia, Lithuania and Belarus. It's a relatively flat area with over 2000 lakes, about 200km north of Warsaw.
The region was shaped by glaciers during the Pleistocene ice age, the last glacial period which ended 11700 years ago. Many of its hills are parts of moraines and many of its lakes are moraine-dammed lakes.
Both Mrągowo and Mikołajki are important tourist centres in the Masurian lake district. Mikołajki is located near the Śniardwy, the largest lake of both the Masurian lake district and Poland. It has a pleasant waterfront with shops, restaurants and a marina for sailboats.
How to get to the Masurian lake district
The closest airport is the Olsztyn-Mazury airport in Szymany, about 70km from the Masurian lake district. It's also possible to drive by car to the region.
Accommodation
Being a major tourist area in Poland, there are many hotels and other accomodation options, most of them bookable via the international booking portals.