A private fishing charter is when everyone on the boat is from the same group for one fee. These trips are not priced as a per person rate. Only you and your family or friends are on the boat. You are paying for the entire boat to take you fishing.
The term charter fishing means; “fishing from a vessel carrying a passenger or passengers for hire that are engaged in recreational fishing”
Charter (adjective) that can be leased or hired for exclusive or private use: a charter boat for deep-sea fishing.