I’d recommend an intro geology course with a lab component. Probably need a paleontology class as well and definitely mineralogy. Hydrology too… Really try to get your hands dirty and get out into the field. Offer to help your professors in their own field research. While gophering, you’d pick up a lot of information.

I’d look around for good programs and get in touch with them. Find out from them what courses you need to take to be ready for a masters. Geologists are fairly easy going and nerdy (to varying degrees).

Good luck!!!!

most geologists are not oceanographers. but studying the rocks under the ocean is a pretty hot topic these days. check out Scripps, Princeton, and the other places that offer both programs (oceanography & geology).

otherwise, think of how a business that employs geologists might be lucky to land you to help run their administrative side. business degrees are usually best applied in areas where the person has other interests. why not consider that?

good luck