A "boat of logs" can be described by various synonyms, depending on the context and location. In some areas, it might be called a "raft," which is a flat structure made of logs and used for transportation across water. Another possible term is "bogtrotter," which is a type of boat made of woven reeds or grass. A "timber-framed vessel" can also be used to refer to a boat made of logs, in a more specific sense. Whatever the name used, it's important to note that a boat of logs or similar structure has been crucial for transportation and commerce throughout history and in many parts of the world.