Yes, there is a direct train connection between Sitges and Tarragona, but its frequency depends on the type of service. Most travelers in 2026 use the Renfe Rodalies R16 line, which runs directly from Sitges to the Tarragona city center station (Tarragona Estació) in approximately 40 to 50 minutes. These trains typically depart every 30 to 60 minutes during peak hours. It is important to distinguish the "City Center" station from the "Camp de Tarragona" station; the latter is a high-speed (AVE) station located far outside the city and is not connected directly to Sitges. If you take the standard regional train, you can enjoy a scenic journey along the Mediterranean coast with views of the sea for much of the ride. A one-way ticket costs roughly €5 to €8, making it a highly affordable "pro" day trip option for those staying in the coastal town of Sitges who want to explore the world-renowned Roman ruins and the stunning cathedral of historic Tarragona without the stress of driving and parking in Catalonia.