From September 1st, the Green Pass (or an official certificate from the EU Zone, Schengen Zone, Canada, Israel, Japan, or USA) is a requirement for domestic travel on long-distance trains (Intercity, Frecce, Italo) or flights within Italy, or on inter-regional coaches and ferries.
The Green Pass or some equivalent certificate is also necessary in many places like the University, inside restaurants, museums, concert halls, etc.
How to get to Bozen-Bolzano
Bozen-Bolzano is located in the center of the Alps, next to the main connection between Italy and Central/Northern Europe at the Brenner pass. There are plenty of apps ad websites out there for comparing, combining and booking trains and buses and flights.
To arrive by air travel, well-connected international airports are Milan, Venice or Munich. Closer airports like Innsbruck, Verona, and Bologna may be useful as well.
Coming by car, use the Brennero A22 motorway and take the exit Bolzano-Sud if you come from the South (Verona – Trento), and Bolzano-Nord if you come from the North (Munich – Innsbruck).
How to get around
Most places in the city are reachable on foot. Another good transport medium is bicycle.
The city runs a number of bus lines, most of them stopping directly opposite university. Tickets cost 1,50€ for a single ride and 4€ for a day, and can be bought at onboard machines, paying with coins. The province runs also a wide range of regional buses and trains. Tickets for buses can be bought onboard, while tickets for trains need to be purchased in advance at the station.
If you plan several rides on buses or trains, you might consider getting a public transport card.
Some interesting places easily reachable by regional train/bus are Meran (40 minutes), Karersee (45-50 minutes), Trento (40 minutes), Brixen (40 minutes), Kalterer See (40 minutes).