Need to avoid making up specific facts. Since I don't have information on a street named Petra in the Czech Republic, maybe keep it general but evocative. Use Czech cultural touchstones. Maybe mention traditional elements like beer halls, pastel-colored buildings, spires, fountains, street musicians. Also, consider the seasons—like autumn leaves in Prague, or Christmas markets.
Petra is the feminine form of Petr (Peter) and is one of the most popular names for women in the Czech Republic. Czech Streets - Petra
Strict documentation (typically via government-issued identification) is required to prove all performers are of legal age before filming begins. Need to avoid making up specific facts