Well-being is a positive mental and physical condition of an individual in their life. One of the ways to fulfill the need of such a condition is through public spaces, which function as a place for citizen to do various activities. This paper aims to look on the decline in the role of public space to increase citizens' well-being through the activities taking place there. To understand how the engagement and well-being of its users work in public spaces, the author examines primary and secondary activities, and uses the Five Ways to Well-being and the active-passive engagement approach. The author taking photos, mapping, and actively observing Suropati Park as the object of observation to analyze this phenomenon further by using the qualitative method. Findings show that Suropati Park as a public space can generate the activities that support the well-being of its users, which can be seen through the occurrence of various types of active and passive activities carried out individually or in groups.