Lots of people want to take day trips from the Bay Area to interesting places. Well, if you want to compete with them and go to somewhere that could be haunted and mysterious, consider taking a day trip to an old mining town or a ghost town.
Do something different on the weekends. Even better, if it is around Halloween or October, consider taking a bunch of friends to haunted houses or ghost towns.
First, consider Calico Ghost Town in San Bernardino County, California. This is a fun day trip from the San Francisco-Oakland-Bay Area. Find out more information at this website.
Or head on down to Bodie State Historic Park near Yosemite. You will find more at their website. Bodie State Historic Park is an old gold-mining ghost town where you are likely to have a lot of fun with your friends.
Now these two parks may or may not be haunted but you will have a lot of fun trying to figure that out for yourself. Make sure to tell all your friends about these places and go there on Halloween day. You will be glad you did for sure.