My husband and I will be visiting a number of Baltic countries beginning next week. As part of our travel plans we will be taking a short cruise from Finland to Russia. I believe we do not need a visa if we are taking a pre-arranged cruise tour from the ship. But if we plan to get off the boat to independently explore we need a visa. I was recently told that a passport and ship's boarding pass are considered legal documentation if the visit is less than 72 hours and a visa is not needed. Does anyone know if this is true or not? I'm getting conflicting information on this. Thanks.