I love San Francisco..it is a really cool place to just hang out.
Alcatraz, Pier 39, cable cars, The museums, Chinatown, The Golden Gate Bridge, Blue and Gold tours, Ghiradelli Square, The Haight, Union Square, any and every restaurant you can wander into.. there is an Irish pub by the very beginning of the Cable Cars.. I can not remember the name.. it shall come to me. It has the BEST IRISH COFFEE!! Napa, Sausalito,Angel Island... whew! have I worn you out yet!! Bring your walking shoes.. or take a tour.. It is all fun.. It is all beautiful.. oh ya .. BRING YOUR WALLET! LOL!!
Have a bowl of clam chowder on Fishermans Wharf.. or have some Fresh Crab.. visit the sea lions who gather at Fishermans Wharf. WEAR A BIG SWEATER.. it gets really chilly! Come on down to visit some stuff in the South Bay or *****ula region.. Stanford!! Silicon Valley.. the Tech Museum.. is wild!! San Jose.. the Amusement Parks like Great America in SJ or Six Flags in Vallejo are not open as of yet.. HOWEVER the BOARDWALK in SANTA CRUZ is OPEN on the wkds.. it is older and it is FUNKY but alot of fun..
any further South.. you will Hit Gilroy.. home of the Garlic Festival in July!! Huge, fun and SMELLY!! Hope this gave you a few ideas.. Have a great vacation!!