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The sum of your Residual Nitrogen Time and your Actual Dive Time (

: Older, legacy editions (e.g., 1994 or 2009) are sometimes available for borrowing or viewing on Internet Archive , though these do not contain the most current safety standards or dive table information.

For individuals seeking to become certified open water divers, the PADI Open Water Diver Manual is an essential resource. The manual provides a comprehensive foundation in scuba diving principles and techniques, preparing readers for the certification exam and practical diving experiences.

When you sign up for a course through a PADI Dive Center, you receive access to the PADI eLearning platform. This digital ecosystem replaces the traditional paper book with an interactive digital manual.

Some dive shops lend manuals to students enrolled in their course. Ask your instructor if they have a or a library copy you can borrow for free.

To help you get started on your scuba journey safely, please share: