Hi all.

I may be traveling mid -Dec between San Francisco and Bakersfield on Amtrak. I am not yet a member of Guest Rewards. I see there is a 500 mile bonus for joining, with 500 more miles for taking a trip within 90 days.

1. Is the program free to join?
2. Any other promos I should know about? (online booking, etc.)
3. Is there a refer a friend bonus? If so, and you'd like to refer me, send me a PM.