The goal of the Hour of Code is not to teach anybody to become an expert computer scientist in one hour. One hour is only enough to learn that computer science is fun and creative, that it is accessible at all ages, for all students, regardless of background.
Transit services. Union Station serves as a transportation hub for Portland. Portland's Greyhound bus station is the next building to the south, having moved to a new building there (from a location in the center of downtown) in 1985.
PLAN 5: AMTRAK TO PORTLAND. Amtrak operates the Downeaster passenger train service between Boston's North Station and Portland. You can ride the Downeaster to Portland and transfer to Concord Coach or Greyhound. If your train arrives in the afternoon, you can stay overnight in Portland and continue north the next day. Concord Coach and Greyhound will get you only as far as Bangor.