[sparkman55]

It is possible to take the train down to Palo Alto from SF, rent a bike from the bike share system, take a leisurely ride down Palm Drive and around Stanford campus (2-5 miles along bike paths) and then back to Palo Alto for coffee (or something else tasty). Coupa Cafe is a good place for coffee, as ulfw mentioned.

If you want to tour one of the big companies, find a friend/acquaintance/recruiter, and catch lunch. These companies compete on quality of meals...

Also, if you're going to rent a car, I highly recommend visiting some Redwoods. The best around are in Big Basin about an hour south of SV. There are also some just north of SF in Muir Woods.

[martinwnet]

I'm not averse to cycling, I just didn't think it would be too scenic around the Valley.

Unfortunately I have no contacts in these big companies.

That's a good shout on the redwoods, I had no idea this was on offer near the SF area, thanks.

[mattbrewsbytes]

We're planning a family vaca to California for the first time this summer and planning on Muir park.

Also if you end up renting a car you may want to check out Yosemite (3-4 hr drive). That is on our list.