The Veisiejai Regional Park was founded in 1992 to protect the landscapes, biodiversity and cultural monuments of the Sūduva Upland. One of the treasures of the park is 37 lakes, the elongated shapes of which are the result of glacial activity. During the last icing, the edge of the glacier was here. The lakes are surrounded by larger forest massifs located on continental (inland) dunes. They are suitable for recreation, nature watching, berry picking and mushroom picking. The park has bathing places and nature trails. The small rivers connecting the lakes are suitable for canoeing. The Veisiejai Regional Park has a great diversity of plant and animal species. Rare species are protected here – the European tree frog (Hyla arborea), which is a symbol of the park, the European pond turtle (Emys orbicularis), and various orchid species.