Whether in carrier flight operations, resupply at sea, antisubmarine warfare, amphibious landings, sea search and rescue, or ship routing, sea conditions, at the place and time the operation is being conducted, become vitally important. The success or failure of any operation being conducted in an ocean environment is greatly dependent upon the extent to which the operation is affected by the sea. Therefore, this programmed lesson was developed to help students learn about the life cycle of an ocean wave. The information presented extends from the time of a wave's formation through its dissipation. The program is designed to allow students to progress through the subject matter at their own speed. Since it is written in linear format, it is suggested that students proceed through the program from "frame" to succeeding "frame." A list of lesson objectives is included. (Author/JN)