Dream of being on a boat with someone is positive and constructive as per dream meaning and interpretation. As water is involved in boat ride dream, you can expect some kind of changes in life soon. It means new relationship, travels and new ideas. The dream is asking you to be more accommodative and talk to people or strangers. This will help in getting you out of the well that you have got into.
Dream of being on a boat with someone you know means a new project or something exciting will happen in your life soon.
Dream of being on a boat with someone and if the person is a stranger then it means someone will come into your life and this will make some changes for good. It can be a romantic relationship.
Please note that the dream to have meaning it should happen naturally not after traveling on boat or thinking about it or watching or talking about after it during daytime.