1. 2. IWW E70 Guide for Boaters. Practical guidelines for sailors and other water enthusiasts. Readers will find essential information about the waterways that make up the Polish section of the IWW E70 as well as points of interest for tourists. A lot of details referring to hydraulic structures and characteristics of the rivers and canals. Boaters will find not only navigable depths and widths but also parameters of the canal locks, bridges and information about navigational obstacles. The Guide includes an important directory with contact details of relevant water-related institutions and emergency phone numbers. (year 2011, p 100).
1.2.1. Map for Boaters. A practical publication for tourists and sailors. It includes 12 maps of the entire Polish section of the IWW E70. The maps show bike trails, national parks, landscape parks, Natura 2000 areas, recommended tourist sights and typical information for sailors, such as chainage markers of navigable rivers, locks, power line clearances, locations of navigational danger spots, details of canal locks, bridges, ferry crossings, ports and harbours (year 2011, 14 sheets).
2. IWW E70 MiniGuide. The first guide publication popularising the Polish section of the IWW E70. The publication is intended to provide water enthusiasts with ideas for attractive leisure activities on the water. The guide also presents the actions taken by local governments, the potential for tourism and some practical information for tourists and boaters. The publication was intended for the ‘Wind and Water’ Trade Fair. (year 2009, p. 24).
3. IWW E70 – Account of a cruise from Berlin to the Vistula Lagoon. A report on the first tourist trip along the entire Polish section of the IWW E70. The motorboat cruise took 12 days and included the so-called Berlin Ring and the Polish section of the IWW E70. It reports on the condition of the waterways in 2009. Although the condition of the infrastructure has significantly improved since that time, this report may be helpful when planning holidays on the IWW E70 (year 2009, p. 28).
4. General Concepts of IWW E70 Development on the Vistula Lagoon and Kaliningrad Bay. The study was prepared within the project realised by the Warmińsko-Mazurskie Voivodeship in cooperation with the Pomorskie Voivodeship and the Kaliningrad Oblast. For the first time Russians and Poles applied a methodical analysis of the present condition and development opportunities on the basis of tourist attractions of the regions connected by the IWW E70 section. Experts from Poland and Russia identified 40 tasks which, when completed, may dramatically increase the tourist potential of this area (Elbląg, Kaliningrad 2011, p. 107).