There are many reasons to visit Cal Poly, even if you aren't enrolled. For example, they have an athletics department that draws hundreds of loyal fans every season. There is also the Cal Poly Performing Arts Center, which holds an array of different shows throughout the year. Cal Poly also offers student-guided tours for prospective students, as well as a GPS tour used through an iPhone app. You can visit and tour the school year long -- however, it is advised to receive permission from the department if you wish to observe a specific course in action.
Cal Poly is a historic college -- it first opened its doors to the citizens of San Luis Obispo in 1903. They offered “Rosie the Riveter” training programs during World War II, and due to funding cuts they couldn’t admit women after 1930, though the college had been co-ed. However, after 1956, women were allowed in again. Today, it is home to a diverse range of students, housing almost 20,000 students each year. The campus size pushes 1,321 acres, only 155 of which is the “campus core;” the rest are all ranches. Cal Poly SLO has the second-most land out of any California college, dwarfed only by Cal Berkeley.
For more information about Cal Poly SLO, please visit their website here.