Summer is the highest-leverage time on a student's calendar. A focused summer program lets you go deep on a subject, live on a college campus, and produce something tangible while school is out. California offers an unmatched concentration of programs, from Stanford, Caltech, and the UC system to Silicon Valley tech and San Diego biotech.
Options include selective pre-college programs at universities, STEM intensives like SSP and COSMOS, arts and writing institutes, and free, fully funded programs for students with financial need.
How you spend your summers tells colleges what you choose to do with unstructured time — a powerful indicator of genuine interest.
Browse 9+ curated programs for high school students:
These programs are based in or strongly tied to California, but many also accept students from out of state and some offer virtual participation. Always check eligibility on each listing.
The most valuable programs are selective, free or aid-supported, and tied to a clear interest. Pay-to-play enrichment is fine for learning but carries less admissions weight.
Many top programs (SSP, MITES, COSMOS, and Telluride/TASS) are free or need-blind. See our guide to the best free summer programs.
Most fall between December and February for the following summer. Apply early and track deadlines with our free Activities Tracker.