Here are top 3 ways to save on the San Francisco cruise trips:
San Francisco CityPass: You can take a San Francisco CityPass that allows you to travel for the entire day, though it may not be the best deal all the time.
To find more details about the San Francisco Citypass, visit this link:
http://www.citypass.com/
The Go San Francisco Card: It is a great deal offering plenty of attractions at a reasonable price, provided you've lot of spare time. Beware the card expires pretty soon, so consider this option only if you can cover so many tourist spots before your card expires.
You can find further detailing on the Go San Francisco Card here:
http://www.smartdestinations.com/san-francisco-attractions-and-tours/_d_Sfo-p1.html?pass=Sfo_Prod_Go&afid=cjgosfotextlong
Direct booking on Respective Websites: To find best deals, you'll have to check individual company's websites, depending upon the choice of your interest.
So, look for discounts on online purchases, and consider the San Francisco CityPass as well as the Go San Francisco Card and evaluate the most profitable choice, depending upon your itinerary. Remember, advance bookings are ideal if you're planning to visit San Francisco during the December holidays or crunch times like summer vacations. This will save you time as well as money.