Suomenlinna is meant to be seen on foot. Many of its roads are paved with cobblestones, so you should wear comfortable walking shoes.
Suomenlinna is a car-free zone where only service vehicles are allowed. There are no minibuses or trains, nor are there any bicycles for hire.
All main sights are situated along the Blue main route which runs across the fortress. The route is marked with blue direction signs and shown on the information maps.
The Suomenlinna maritime fortress is a challenging environment for people with impaired mobility because of the fortifications and rocky terrain. The Accessibility section provides more information and tips for people with impaired mobility planning a visit to Suomenlinna.
In Suomenlinna the streets have no names. Postal addresses consist of the letter of the island and the number of the house. A = Kustaanmiekka, B = Susisaari, C = Iso Mustasaari, D = Pikku Mustasaari and E = Länsi-Mustasaari. So, the address of, say, Jetty Barracks, located on Iso Mustasaari island near the main quay, is C 1.