Our analysis deals with the land development and management for tourist and recreational purposes around Drwęckie Lake, a water body lying in the limits of the town Ostróda. A lot of tourists and residents in summer season can be attributed to the spatial management, a wide range of hospitality facilities and many opportunities to practice water sports and to hold mass events. Another aspect we analyzed was the influence that these various forms of development for tourism and recreation could have on the natural environment of Drwęckie Lake. To this aim, the shoreline burden indicator (K) values and the lake’s burden class were calculated. It has been concluded that both land and water shore zones are considerably loaded due to the densely developed space and increasingly intensive tourist and recreational activities. Current situation can lead to excessive degradation of the lake’s water and depreciation of the tourist value of the entire area.