There is an ongoing action in Poland, involving the planning of the protection of national parks. Each plan involves a number of so-called operatives (elaborations), among these the protection of the resources and the values of the landscape. Besides the value of nature the cultural resources arc also assessed. An operative of spatial planning is prepared and very often an independent operative devoted to tourist development is also worked out. The result is the general elaboration (operative) containing the overall strategy for the protection of the area and various guidelines for the local spatial plans as well as recommendations to the management of each national park. Protection plans of national parks are formulated for a twenty year period. Each plan is elaborated by large interdisciplinary team consisting of dozens of specialists.An assessment of the landscape and the delimitation of the landscape units can be obtained by using various solutions. The official instructions ineffectively recommend to divide national parks into landscape-architectural units. This approach is widespread in Poland, but only in the areas transformed by man. Within national parks, this method does not work. As a result, within the boundaries of three national parks, elaborated with cooperation of undersigned, various solutions were used.The landscape situation of the Wigry National Park is examined at three levels of detail. The first one illustrates the location of the park in relation to the boundaries of physico-gcographical regions, the second level involves the division of the park and its surroundings into vegetation micro-landscapes and the third is the division of the succeeding vegetation micro-landscapes into basic landscape units identified by their abiotic attributes.The character of the Bicbrza National Park however, called for an entirely different approach. The division of its marshlands into landscape units of various taxonomical levels was carried out according to the varying characteristics of vegetation cover, assuming that vegetation was an indicator of habitat.In the study of the Narcw National Park, apart the park territory (the bottom of meandering valley of the Narcw river) the buffer zone was also taken under consideration. The landscape division of the area was undertaken jointly with regard to the litogeneous areas of the buffer zone and the hydrogen areas of valley bottom.The units obtained in the ways described above, helped serve as fields of estimation during the valorisation of the landscape values and in finding the potential of the landscape. With reference to the area of the units, various plans of action and conclusions were formulated.