Ask HN: Fresh grad interested in startup scene visiting the bay area

I'm wrapping up my MS in computer engineering and just happen to be heading to the west coast for some unrelated stuff.

I'll be in the bay area some time in between July 27 and June 6 for about a week.

Is there a good way to "get a feel" for the tech scene? I'd love to run in to a hackathon or something like that (probably ambitious). Is there a site that keeps track of bay area tech events?

My email is in my profile, too. Any advice is appreciated :)