Hello we are coming out to the Bears 49ers game in sept. I've never been to San Fran and am aware the stadium is 30 miles or so from the airport. We are going to stay in santa Clare the first night then most likely head back towards San Fran. Will we need to rent a car or could be get most of this done with public transportation? I'm going with my 75 year old dad so not much walking will be done beside from the marriott to the stadium. Thanks for any info you can provide along with must see attractions and eats.