The RailRunner is the train that connects Belen (town South of ABQ) to Santa Fe. Developed as a commuter line, the train is popular with families on weekends and in the summer. Great way to expose kids to train travel. Also a great way to show out-of-towners, who may not get off the freeways what the neighborhoods and countryside of the area are like. Compared to East Coast trains, it is very inexpensive.