Enjoying a summer day in Suomenlinna

It has been almost 4 years since the time I visited Finland, and one of the best souvenirs I have from that travel was the day trip I made to Suomenlinna on a nice summer day. It's a very interesting place, according to wikitravel "Gibraltar of the North, was once the greatest sea fortress in the Baltic, built by the Swedish in the mid-1700s". You can take a boat that will bring you to this place, enjoy the day and then come back to Helsinki. Totally worth it!