Yes, the historic Tram 28 in Lisbon is part of the city's official public transport network (Carris), meaning it is fully included in the "Viva Viagem" 24-hour day pass (which costs about €6.80 in 2026). This pass gives you unlimited rides on all buses, metro lines, funiculars, the Santa Justa Lift, and the iconic yellow trams. However, because Tram 28 has become a world-famous "tourist attraction" rather than just a local transit route, the lines at the starting points in Martim Moniz and Campo de Ourique can be over two hours long. If you use your day pass, you simply "tap in" at the yellow reader near the driver. To get the most value out of your pass and avoid the crowds, the "pro tip" is to board early in the morning (before 8:30 AM) or late in the evening. Also, be aware that pickpockets are extremely active on this specific route due to the high density of distracted tourists. If the line for the "vintage" tram is too long, your day pass also works on the modern "Articulado" trams (like Route 15 to Belém), which are faster and air-conditioned but lack the wood-paneled charm of the 1930s-era "Remodelado" carriages.