The purpose of this study is to determine the dimensions or factors of tourists' motivation to hot springs tourism. It is driven by a research gap that past studies on hot springs tourism mainly focus on the relationship between motivation variables with various indicators and other behavioral constructs. They have not fully acknowledged the fundamental factors forming tourists' motivation to hot springs. A selfadministered survey was handed out and 375 usable data were gathered from respondents who holiday at hot springs in Ciater and Cipanas. To generate new underlying dimensions of hot springs tourist motivation an exploratory factor analysis was used. The result shows three factors of push motivation and two factors of pull motivation, namely; Leisure, Health, Kinship, Outdoor, and Entertain respectively. Next, to check that the the reliability and validity of the new dimensions were correct, a confirmatory factor analysis was conducted. The result confirms the dimensionality of the hot springs tourists' motivation construct. This study adds to the body of knowledge on hot spring tourists' motivation and its dimensions.