Things to do in Helsinki
For a very inexpensive guided tour, try the Hop-on, Hop-off Sightseeing Tour. Ride around in an open-top double-decker bus that stops at certain locations throughout the city in which you are allowed to get out and explore. Then get back on the bus and ride to the next destination! There are generally 15 or so stops on this tour, so be prepared with comfortable clothing and walking shoes.
If shopping and dining is how you'd like to spend a day in Helsinki, walk right out of your hotel doors and onto the street. Downtown Helsinki is full of night life, ethnic restaurants, major shopping, theaters, music halls, and sightseeing.
Explore things to do in Finland for more options.