This investigation was designed to introduce the variety of recreational activities available in the Lake Erie region. It includes a computerized database for Apple computers and two activities intended to help students understand the variables involved in making recreational decisions and carrying through on the results, plus review questions for students. The accompanying teachers' guide contains all of the materials included in the activities in the student book and the answers to the questions. Activity A presents map reading activities that will familiarize students with the geography of the Lake Erie region. Activity B is intended to develop decision making, analysis, and communication skills. The complete investigation is designed to enable students to: (1) describe the variety of recreational activities at Lake Erie; (2) identify specific geographic regions that support distinct recreational opportunities; (3) locate selected areas on maps of the Lake Erie region; (4) calculate distances on maps using the maps' scales; (5) plan, agree upon, and recommend a place for a certain type of recreation; and (6) tell what they would most like to do for recreation around the Great Lakes. (TW)