Summer Hiking Partner

Hi! I'm a college student who's going to be in LA (Burbank) for the summer, and I was wondering what you suggest doing to find a good hiking partner.  I've been looking at hikes and am now drooling over the idea of the 6 pack bundle of peaks, culminating in climbing Whitney at the end of my stay.  However, I know it's not a good idea to hike alone, especially up mountains (even if they are walk ups).  So, as you seem to be really knowledgeable, I was hoping you might have some advice for finding a hiking partner! Thanks!