The mobile application and website ‘Rowerem po Żelaznym Szlaku’ are a tourist guide depicting the bicycle trail forming a loop from Jastrzębie-Zdrój, through the Commune of Zebrzydowice, Karviná, Piotrowice near Karviná and the Commune of Godów, back to Jastrzębie-Zdrój. The user will find here tourist attractions with photos and descriptions. Sightseeing can be made more interesting by quizzes that can be solved by the whole family. The application and the website were created in three languages: Polish, English, and Czech.