Korean language journalThis research is intended to verify the levels of participation motivation and satisfaction, and revisiting intention of marine sports participants of each age group, using a latent mean analysis. The purpose is to provide basic data necessary for various environments to be considered for marine sports development by verifying the level of participation motivation and satisfaction, and revisiting intention of marine sports participants of each age group, after evaluating their measurement variables through verification of equality in terms of forms, measurement and segments. As a result, the following facts were derived. First, compared to people in their 20s, participants in their 30s showed statistical similarities in ‘deviance’ (p<.001), ‘entertainment value’ (p<.001), ‘satisfaction level’ (p<.05), and ‘revisiting intention’ (p<.05). In terms of effect size (d), the ‘entertainment value’ was very substantial (.8 or above), and ‘deviance’ showed an intermediate-level of disparity (.5 or above). Meanwhile, ‘educational value’, ‘satisfaction level’, and ‘revisiting intention’, showed a small level of disparity (.2 or above). Second, participants in their 40s showed statistical similarities in ‘deviance’ (p<.001) and ‘entertainment value’ (p<.001), and showed an intermediate-level of disparity (.5 or above) in ‘deviance’ and ‘entertainment value’ in the effect size (d). Third, participants in their 50s showed statistical similarities in ‘deviance’ (p<.001), ‘entertainment value’ (p<.001), and ‘reliability’ (p<.05). In terms of effect size (d), a high level of disparity (.8 or above) in ‘deviance’, an intermediate-level of disparity (.5 or above) in ‘entertainment value’, and a small level of disparity (.2 or above) was found in ‘reliability‘