[larrys]

But the OP said specifically:

"What meetups/cafes/events can I go to to network"

The goal appears therefore to be to network. Not to do interesting sight seeing things. Nor to meet "interesting people" unless those interesting people are specifically for networking purposes.

Add: How does a three day visit for networking jive with "Catch a Giants game. Drink fantastic coffee".

You can do all that in the city that I live in and in many cities.

[tizzdogg]

True, it's not answering the OPs original question. I think people are responding to the implied idea that you can just show up in San Francisco and bump into VCs all over the place, and that this is all the city has to offer. SF people love their city for other reasons, and get a bit defensive about this attitude that tech is the only worthwhile thing about it. It's partally a part of the ongoing angst about the changing nature of the city with the influx of so many tech folks.