In this case Timetravels highly recommends that you renew your passport to ensure a trouble free border crossing. Please contact your closest embassy or consulate for more information on how to renew your passport. The rules established by the Russian Federation state that all passengers traveling to Russia should have a passport which is valid at least 6 months after the trip. Here you can find a link to the Diplomatic representation of foreign states in Finland.
If you however decide that you would like to join our trip with a passport that doesn’t meet the requirements, you are doing so on your own risk. If the Russian border officials deny you entry into the country, neither we or the ferry company can offer any refund and you will unfortunately be responsible for your own return to Finland. We would not like to see this happening to any of our travelers, so therefore we hope that you would follow our recommendations.