Replying to Stuff to do in Cali

Hey NS I'm going out to the Bay Area of California to help my sister move in mid May and I'm gonna be out there for a bit. I've done a lot of exploring of San Francisco in the past and I love it, but I was curious if anyone from there could give me some ideas of things to do. I love to skate so I'm bringing my deck so any good skatepark suggestions would be dope. Also I love to hike and explore nature so I plan to try to go to Yosemite and the redwood forest. Any of you guys done that in the past and have any suggestion? Also any idea if Tahoe will still have skiing?