With the "HeidiCHain", pioneering work is currently being done in the Swiss mountains and the foundation for future innovations in tourism is being laid: The destination management organization Heidiland is working together with the blockchain specialists from rell.io and other technology and tourism partners on the world's first tourism blockchain, which makes it possible to share data within a destination in a decentralized and anonymized manner and to carry out transactions. Customer data that was previously reserved for individual service providers can thus be linked and shared in a meaningful way, opening up entirely new possibilities on both the demand and supply sides. Visitor flow analyses, needs-based product developments, ... The "HeidiCHain" makes it possible.