I just wanted to share with you what I did on a recent field trip for my graduate class in volcanology:
Lava sampling
We had 6 students in the class, and got our airfare to Hawaii covered by the department, and we got to explore Kilauea volcano. We did have to cover lodging and meals, and of course be able to keep up on the up to 14 miles per day of hiking.
All in all, it was a lot of fun, especially the day that this video was taken.
--Olorin