What are some actually fun extracurriculars or hobbies (for apps)?

So I'm a junior whose perpetually bored and besides scrolling on my phone, tweaking out over college admissions, and and nerding out over music, I have pretty much no hobbies. Since college apps are coming up soon I thought that this would be a pretty good time to become a more interesting and well rounded person, so what are some actually enjoyable extracurriculars that you guys do that you would recommend?

EDIT: Just in case you guys are wondering, I'm planning on going into EE or CivE but recommend any sort of extracurricular!