You need a visa for Papua New Guinea if you have a Portuguese passport
Visa options for Papua New Guinea (2)
Electronic visitor visa
Travelers need a visa to visit Papua New Guinea for Business or Tourism. A Papua New Guinea eVisa is the fastest and easiest way of obtaining a visa for Papua New Guinea because travelers can submit their application and supporting documents online. Once the application is approved, travelers receive their eVisa confirmation electronically. A valid visa is required to board the flight. If the visa is expired or doesn’t match the traveler’s passport information, travelers will not be able to board their flight.
Visa on arrival
Travelers need a visa to visit Papua New Guinea for Business or Tourism. Travelers can get a visa on arrival in Papua New Guinea at the port of entry, such as an international airport or border crossing. Travelers can get a visa on arrival in Papua New Guinea at Jackson’s International Airport.