The Masurian Plain is a physico-geographical mesoregion located in northeastern Poland, forming part of the Masurian Lake District. Its boundaries are defined by neighboring mesoregions such as the Lubawa Upland, the Olsztyn Lake District, the Mrągowo Lake District, the Great Masurian Lakes, the Ełk Lake District, and the Kurpie Plain. It is distinguished by its abundance of lakes, including Lake Roś and Lake Nidzkie, the latter of which is protected as a landscape reserve. The Masurian Plain is characterized by extensive forest cover, including the Piska Forest to the east and the Nidzica Forest to the west. Its good ecological condition and relatively unpolluted environment attract tourists, offering numerous opportunities for active recreation. The region's rivers, such as the Omulew, Szkwa, Rozoga, and Pisa (tributaries of the Narew), further enhance the landscape's charm. The towns of Szczytno, Pisz, and Ruciane-Nida serve as the main settlement centers, offering both tourist attractions and local traditions. The region also boasts a rich historical heritage, with numerous monuments and cultural curiosities tied to the history of Masuria and its inhabitants. Thanks to its natural beauty and cultural treasures, this area is an important destination on Poland's tourist map.