The office sells Suomenlinna tickets, single tickets and one day AB and ABC tickets.
Ticket office opening hours in the summer:
2 May-2 June
3 June-15 September
every day 9am-5pm
Over the Midsummer 21-22 June
Outside the opening hours, tickets are available from the ticket machines at the ferry pier or using the HSL app.
More information about ticket and fares:www.hsl.fi/en/tickets-and-fares