The main goal of this class is to teach students to understand the operation of snorkeling and scuba diving for underwater survey. The contents of scuba diving include introduction of International Diving Organization, diving equipment, planning, diving physiology and medicine, marine dangerous creatures and ecology, and inspection of coral reefs. Advanced scuba diving covers diving psychology, diving rescue, underwater search and salvage, diving navigation, boat diving, deep diving and night diving. After completing the course, students not only have a complete understanding of snorkeling and scuba diving, but also have basic marine ecology and underwater survey skills. This lecture course does not include marine internships. It is necessary to take a marine practice course other than this course in order to be qualified for taking diving license exam.