When coming to Helsinki you have to visit the main market place in the port, Suomenlinna - the fortress on several islands, Seurasaari - the museum island and when getting hungry my friends restaurant "Aleksandria" in Katajanokka !!
If it's a nice summer day a tourist should definitely take a ferry to Suomenlinna and have a picnic there!
In 10 days I'm going to Finland (Lappeenranta and nearby places). What would u advise to see and where to stay for a couple of days? To take a boat on hire or any other activities there? Thanks for our advice in advance