I'm a flying geologist! Doing research on rivers and volcanic flows, have a NZ PPL, not making any money or anything by flying but when I was in NZ working on the mudflow from Mt Ruapehu I hired a 172 a couple of times and a supercub another, took it up to the crater lake and flew up and down the river. In fact a couple of pics I took got published in UNESCO "world heritage review" magazine!
Crater lake
Whangaehu Fan
so sort of combining my interests...!