Yes, do it, the Svalbard UNIS course are apparently awesome field experiences! I haven't been myself, but one of the women from my PhD group did the glacier geophysics course ((
https://www.unis.no/course/ag-835-arctic-seismic-e...) and loved it and now keeps going back as an assistant instructor.
I get paid to study the hydrology of ice sheets and glaciers, mostly with radar geophysics and remote sensing, and it's a really cool field - lots of fundamental questions we still don't understand and a rapidly changing system with big impacts on the whole earth system. I'm always happy to talk ice if you're interested!