My location makes it perfect to do both.
For astronomy: Mauna Kea has several observatories, as it in the ideal location for observing space. The middle of the ocean, barely any light around, one of the highest mountains in the world.
For geology: Kilauea is one of the world’s most active volcanoes. It would be lovely if I could do some sort of field work at the national park or with geologists.
I have to figure this out. There is an engineering internship in Oahu I am considering, so we’ll have to see if that’ll work :D