休閒是現代人們在生活忙碌之餘最爲重視且最常從事的行爲。Havitiz and Dimanche於1990年就曾提及休閒涉入的程度成爲遊客對於目的地體驗有所影響，且在遊憩過程中也會影響對遊客之知覺風險。而當遊客對於活動之涉入及風險的認知，也有助於遊客對於活動內容所獲得的休閒效益。然而休閒效益亦能顯著地影響個人主觀判定其獲得之快樂，即所謂幸福感。因此本研究欲探討休閒涉入、知覺風險、休閒效益與幸福感間之關係。水域遊憩活動近年來日受重視，因此本研究也欲探討遊客對其產生的影響。本研究採便利抽樣，並以墾丁地區海域之遊客爲調查對象進而發放收取，目的即是欲了解在墾丁地區從事水域遊憩活動的遊客其休閒涉入、知覺風險、休閒效益與幸福感間之關係，研究發現：1.休閒涉入之重要愉悅性、象徵價值與自我中心性等三構面對於知覺風險具有顯著影響，其中以自我中心性最具有影響力。2.重要愉悅性、象徵價值與自我中心性等三構面對於休閒效益都具顯著影響，又以象徵價值爲劇。3.知覺風險中替代性經驗、焦慮傾向、過往經驗以及媒體報導對休閒效益都具有顯著影響，其中以焦慮傾向最具影響力。4.休閒效益對於幸福感中，其中自我成就之影響最大，對心理效益則無顯著之影響。

In the modern, when people have their free time besides busy working, Leisure is the most important thing that people always spent much time on it. In 1990, Havitiz & Dimanche suggested that the extent of Leisure Involvement which contributes most to the formation of Destination Experience, and also contributes to consumer's Perceived Risk in recreation process. By knowing the involvement and the cognitive of risk for tourist's activities, tourist can access to Leisure Benefits from the contents of activities. Leisure Benefits contributes most to the formation of people's happiness through their subjective determinations, and it is called Well-being. The aim of this study is to understand the relationships between Leisure Involvement, Perceived Risk, Leisure Benefits and Well-being. aquatic recreation activities Tourists is more and more attention. Therefore, the study will explore the contribution of tourists. Surveyed the tourists which were at aquatic recreation and doing activities in Kenting by convenient sampling method, and explain the study theme from 390 valid responses. The finding suggested: (1) Important Pleasure, Symbolic, Centrality to Lifestyle are the Leisure Involvement that contribute most to the formation of Perceived Risk, especially Centrality to Lifestyle. (2) Important Pleasure, Symbolic, and Centrality to Lifestyle are the Leisure Involvement that contributes most to the formation of Leisure Benefits, especially Symbolic. (3) Vicarious Experience, Predisposition to Anxiety. Past Experience and Media Presentations are the Perceived Risk t that contributes most to the formation of Leisure Benefits, especially Predisposition to Anxiety. (4) Psychological Benefits, Physiological Benefits, Social Benefits, Self-Actualization are the Leisure that contribute most to the formation of Well-being, except Psychological Benefits.