We took a ferry from Estonia to Finland and from Finland to Sweden. In both cases we booked Viking Lines, it's Finnish company. From Estonia to Finland there is a short distance, about 3 hours. You can spend all these hours in a buffet :) it's a tip from me. There is a great playground, which located opposite way from the prebooked buffet. There is another buffet, which is good too. Every half hour staff entertain kids by stickers, stories or something like that. Eva liked it.
Our room, it has everything you could need overnight.
Tax free store. They told us, it's the biggest one on the water.
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