The popularity of hiking has steadily increased in the latest years, across different segments of the population. Although there is considerable evidence of the benefits for hikers regarding physical and mental health, the inherent risks of these outdoor activities cannot be underestimated. Accident prevention and an increase of awareness about possible risks are necessary to minimize hiking and pedestrian tourism’s negative consequences. In most hiking information maps and interactive applications, there is usually not enough information about difficulty points or the granularity level required to provide tailored recommendations to hikers with physical or psychological limitations. This report documents the process of preparing and opening the data of the Syris project, a geo-information system for hiking itineraries that incorporates Points-Of-Difficulty to assess the level of effort, technique, and risk of hiking trails. This dataset published in Zenodo1, is a pioneering effort to offer comprehensive information about detailed difficulty and effort levels in hiking paths at Val d’Anniviers in Switzerland, with the long term goal of expanding the database to the rest of the country.