Explore Helsinki's standout landmarks over four days, from the Olympic Stadium and Sibelius Monument to the Rock Church, Helsinki Cathedral, and Uspenskin Cathedral. Stroll through the Helsinki Design District, visit the Old Market Hall, and take a ferry to Suomenlinna, the UNESCO-listed sea fortress spread across six islands. Continue to the medieval Old Town of Porvoo to admire its well-preserved architecture and Porvoo Cathedral. The tour also includes free time to enjoy Helsinki at your own pace before departure.