Summer Oppurtunities

I’m entering my sophomore year of high school and I’m looking for any good summer camps/classes/programs that can be useful not necessarily just for college applications and stuff but more just for fun and learning. If anyone has anything I’d appreciate it

My sister signed up for the EF International Language Campuses program. She did an 8 week course over the summer in Madrid where she took Spanish classes and got to do lots of fun travel activities. Going into her senior year of high school she is keeping the college credit for next year.