With his participation in the Roundtable on Data & Data Analytics of the CAST Network on June 8, 2021, Ulf Sonntag was able to share his contribution “Data needs of tourism destinations from a personal user’s point of view – Big Data Enabling Tourism Competitiveness” with other experts. CAST (Creative Accelerators for Sustainable Tourism) is a three-year collaborative network-building project funded by the EU through COSME.