The paper presents the results of the inventory of databases for the registration of data on the ecological sites. The area of research concerns the administrative borders of Krakow. The research materials ware obtained on the basis of analyzes of existing databases recording ecological sites, which constitute the basis of a district database Register of Land and Buildings (EGiB) and database District Water Management Board (Regional Board) in Krakow city, responsible for the Water Cadastre. The compatibility of the achieved data were compared with the data of the Municipal Information System (MSIP), and the Regional Directorate for Environmental Protection (RDOŚ), and then a descriptive specification for all (registered till April 2016), 12 of ecological sites was performed. In the first stage the analysis of the detailed data in the databases of the ecological water cadaster and EGiB was performed, then in other databases of descriptive and spatial available for the research area. In the research part of the paper the authors carried out the inventory of the selected object in the studies area and the documentation descriptive and graphical natural curiosities was created. The main aim of this study was to draw attention to natural and tourism potential, which is for the big city in an ecological site and obtaining the data to develop the concept of an interactive thematic map natural curiosities, using integrated techniques of surveying GPS and GIS. Such a map will be the next stage of research and is not the subject of this paper.