The environmental and cultural problems in Thailand are large and widely distributed. To address these problems, public awareness must be raised and all sectors of society must assume their civic responsibilities to assist in sustaining both our environment and the local culture. This study sought to engage undergraduate students in civic engagement projects in order to enhance their self-efficacy to address such problems through service learning experiences. One hundred and ninety six undergraduate students participated in a general education course on civic education during the first semester of 2012. This course provided students the opportunity to explore theoretical aspects of citizenship as well as the opportunity to practice community service. Such community service allows the students to experience and learn how the community members live. Data was collected by a variety of methods; self-efficacy questionnaires, student reports, journal writing and reflections, and interviews. Findings revealed that the students had high levels of self-efficacy and increased their levels of civic engagement through the community service conducted.