If you are planning to take your Open Water Diver course in a few weeks, then you need a study guide that will help you prepare for the final test with practise questions. We include things to know before you take the test, tips from an experienced instructor, tricks for taking the exam, Recreational Dive Planner information and 57 practise questions. During the test you need to answer questions about the basic principles of scuba diving, which shows that you know how to plan dives, choose the right scuba gear and understand underwater signals and diving procedures. This book is written by an experienced instructor to help you make sure you are adequately prepared and ready! It was updated in 2022 to include Covid related questions.