Mountaineering and hiking have been verified as leisure activities which are beneficial to physical and mental health. Due to the implementation of five-day workweek in Taiwan, a growing number of mountaineers have engaged in mountaineering. The number of retirees engaging in mountaineering and hiking has particularly been increasing. However, mountaineering and hiking are different from general hiking mainly because there are more uncertainties in mountain activities, such as altitude, climate, road condition and sports injuries. Most of the studies in Taiwan focus on hiking, while seldom discuss mountaineering and hiking. Therefore, this study intends to investigate the leisure benefits of mountaineers and hikers, and takes Cali Mountain as an example to understand the perceived pace and force of mountaineers and hikers. This study conducted a questionnaire survey and used actual measurement to collect data. A total of 65 mountaineers and hikers received the interviews, and 15 of them underwent the gait measurement at Cali Mountain. After the data analysis, this study found that mountaineering and hiking have a positive effect on leisure benefits, and as many as 82.6% of the respondents agreed with it. During the mountaineering of Cali Mountain, the perceived fatigue of subjective force on knees is the highest, followed by thigh and calf. The average footstep frequency of mountaineering and hiking 41 steps/min, and the average pace is 0.49 meters/second, the average stride is 0.71 meters/step and the average speed is approximately 51-70% of that of plain hikers.