covid 19 – What address do I write in the Südtirol travel form when I’m changing location frequently (such as when backpacking)?

I am considering whether cycling from Germany to Italy may be feasible in the corona summer 2021 (fully vaccinated). Tourism in Italy is presently allowed. Among other questions, the Südtirol registration form asks for the address where the visitor will reside. What can I answer here if I am intending to be trekking, changing location (almost) every night? When entering the United States or Russia (pre-corona), it was customary and accepted to write the address for the first night only. Is this practice approved for the registration for entering Italy?

I haven’t looked through the EU Passenger Location Form yet, but I expect there might be a similar question there (visitors to Südtirol need to complete both forms in any case).