If you fancy a little maritime adventure while you’re in Helsinki I highly recommend making a trip to Suomenlinna (Sveaborg), which also happens to be on the UNESCO World Heritage List. Built during the Swedish era as a maritime fortress and a base for the Archipelago Fleet, Suomenlinna is only a quick 15-20 minute ferry ride away from the Market Square.
You can easily spend an entire day at Suomenlinna. In addition to several shops (in which you’ll spot some Moomin goodies) and museums, there are many trails that lead to spectacular views. We were excited to come across an enchanting family of swans–the fluffy cygnets were just adorable.
Before you go, check the HSL website for detailed ferry schedules. Finnish weather can be unpredictable so be sure to dress in layers. When we set out on the ferry the weather was quite nice but as we arrived at the fortress we were suddenly surrounded by fog. I might as well throw in a reminder to wear comfortable shoes. We saw several ladies looking quite miserable in skinny heels–not the best choice for walking on slightly rugged, unpaved roads.