Since Keystone has been around for more than sixty years, there are some ongoing traditions and a well-established campus culture. Many students are active in athletics, which shapes a lot of the groups they hang out with. In addition to clubs, there are special activities on holidays (Thanksgiving, Halloween, Valentine's Day) and school dances.
Students also occasionally take field trips off campus. Students in tenth grade, for example, go to Yosemite National Park a week of enrichment.