This research highlights fitness exercises and well-being activities of the elderly, employing the perspectives of the compression of morbidity, strengths and empowerment, as well as observations for balance performance and analyses on the effects of balance exercises are included. In conclusion, healthy aging is based on constructing fitness exercises and meeting the delivery on well-being model of "5As". Both depth interviews and observations of group activities, as well as first hand core data and descriptive statistics are used. Climates, family support, companionship, free transportation, and the rules of institutions will affect the behavior of exercise. "Accessibility" and "acceptability" of the activities and "availability" at locations are key factors to develop exercise habits. Moreover, the fitness exercises could be classified into four types: fitness, leisure, work-based, and volunteer-based. Based on the assessments of four physical abilities (equilibrant, activity, interaction, and reaction), most senior citizens feel in good physical capacities and health. Although some lack of good performance on equilibrant, activity, and reaction, they are still excellent on the part of interaction. Therefore, the complements of internal and external environments are suggested for "healthy aging."