If that describes you, continue as usual. If you are interested in alternative methods, here are some suggestions. Requesting credit through alternative methods can be done before or after work is completed. A finished product or other verification of learning is usually necessary for credit. The amount of credit generally depends on the scope of the project rather than the amount of time it takes.
Students fulfill class expectations to earn credit.
Simply send some documentation. Clonlara credit depends on the scope of the class rather that on what credit the organization chooses to grant. A trip is a holistic learning experience encompassing many subject areas. Some ways to document are itineraries, journals, maps. This is an opportunity to participate in an adult setting, handling responsibilities as close as possible to those demanded of adults.