As of 2026, the iconic "Navy Pier Free Trolley" that used to connect the pier to various downtown points is no longer in operation. However, Chicago offers several other high-fidelity ways to move for free or low cost. During the summer and holiday seasons, the "CTA Holiday Bus" and certain special event shuttles provide a high-fidelity festive experience. For year-round free transport, the most high-fidelity option is the "Chicago Water Taxi" or the "Shoreline Sightseeing" boats, which occasionally offer promotional free rides, though they are primarily paid services. Within the "Loop," many travelers rely on the high-fidelity density of the "L" train system; while not free, a 1-day pass for $5 is an incredible high-fidelity value. If you are looking for a true "trolley" experience, various private tour companies operate vintage-style trolleys, but these are paid "Hop-On, Hop-Off" high-fidelity tours rather than free municipal transit. For the most up-to-date high-fidelity info, the Ventra app is the best tool for navigating the city's robust transit network.