If  you will be in San Francisco I would highly advise you to go to the UCSD and in particular see the School of Engineering building :) <a href="http:&#x2F;&#x2F;cdn.sandiegouniontrib.com&#x2F;img&#x2F;photos&#x2F;2013&#x2F;07&#x2F;14&#x2F;jacobs_r900x493.jpg?122770e84b36f1c039d5c4c2ca15c2d8bc4ecd52" rel="nofollow">http:&#x2F;&#x2F;cdn.sandiegouniontrib.com&#x2F;img&#x2F;photos&#x2F;2013&#x2F;07&#x2F;14&#x2F;jacob...</a><p>You can also visit the place called Razor Point its really beautiful!<p>And to observe a sunset over Pacific Ocean is a must do! I am not sure about the weather in March but that side is really famous for its waves) so dont loose a change to have some surfing)