This is a thread regarding the information one needs when visiting Helsinki for one day (about 10 - 17 o'clock) from a cruise ship. It is based on the numerous questions asked in previous years, but feel free to ask more if you can't find it in this thread.
I understand it's daunting to write extensive reviews about every town you visit, but we and other visitors would appreciate a short note explaning what sights you ended up visiting and what you recommend for others.
BEFORE YOUR TRIP:
Search Trip Advisor :-) Read the Things to do and Restaurants sections for reviews from other travellers.
Change some euros. It's the official currency of Finland. Though plastic is very very common too. Visa and Master Card are accepted virtually everywhere excluding some ice cream kiosks, market place vendors and Cafe Regatta. Diners Club and Amex are accepted mostly, but not that extensively.