Explore the secret treasures and famous landmarks of porvoo old town on this half day tour from helsinki chose the start time to suit your schedule then follow a guide through porvoos historic old town discover top attractions including 15th century porvoo cathedral and the waterside bars and galleries for which porvoo is famous sample local sweet treats at a local chocolate shop and enjoy personalized attention from your guide on this small group tour limited to eight people this 4 hou