A pillow fight? San Francisco is such a silly city. I loved growing up there.
I know what you mean about the winter landscape. I'm used to it now, but we arrived in this country in February many moons ago from Japan, and I can still remember being overawed by the greenery, especially as we rode through Golden Gate Park to our new home. I think it was more surprising than anything else about America in our initial impressions.
The yellow trees probably are Witch Hazel, but some Acacias are in bloom now too.
You did pick a good week to come. We've had a lot of rain lately, but this week promises to be fairly dry.
Enjoy your music camp. Do you play an instrument and/or sing, or do you just like the music?