International travelers from Canada, Mexico and the UK have good air access to Phoenix. There's a fairly extensive network of Amtrak trains and Greyhound buses serving the Southwest. All the main car rental companies have airport offices, and many have offices in other parts of the valley or will deliver a car to your door. Valley Metro operates weekday buses all over the valley as well as a few routes on Saturday. Most stop operating in the early evening.
Riders can use credit cards to pay their fare.
The DASH bus system runs weekdays from downtown to the capitol, leaving every few minutes from dawn to dusk. Three to four hour narrated bus tours are a popular way of taking in the city's major sights. Several companies also do longer tours, such as a grueling 14 hour tour to the Grand Canyon. Truer to the Western spirit are the horse-drawn carriage tours of Old Town Scottsdale. Many companies offer 4WD tours into the surrounding desert, lasting anywhere from four hours to all day and stressing themes from ghost towns to natural history to Indian petroglyphs and ruins.