The train began operations in 2015 and transports tourists from Seoul along the coastal areas of the West Sea.

[3] The train travels to several stops located near tourist points, seven of which are Asan Hot Springs in Asan, Sudeoksa Temple in Yesan, Namdang Port Hongseong, Daecheon Beach and mud fields in Boryeong,[1] the National Institute of Ecology in Seocheon, a cultural heritage street, and nearby islands at Gunsan[4] and the Iksan Jewelry Museum in Iksan.

[5][6] The letter "G", in the name, stands for "gold", a reference to seven "golden" destinations on the West Coast, where the train stops.

[7] And the exterior of the train is decorated to symbolize those seven regional destinations, with seven shiny jeweled patterns.

[3] The train has five passenger cars, some with heated foot jacuzzis with seats facing the windows in the cafeteria section, the "Footbath Café", for drinking tea.