The diver log book section serves as the individual diver's essential tool for recording their underwater experiences, ensuring adherence to safety standards, and tracking continuous skill progression. Built on the underlying LogEntry Model, this system is designed for simplicity and efficiency, capturing mandatory dive details while automatically generating crucial safety analytics.

​The intuitive Logbook Entry Interface guides divers through recording core data such as date, location, maximum depth, and bottom time. Critically, it captures the essential Air Consumption Data—including start pressure, end pressure, and cylinder volume—which are the raw inputs required for the system's automated calculations. For official record-keeping, it allows divers to note the Dive Type Context (e.g., Wreck, Deep, Training), providing verifiable experience documentation needed for BSAC or other qualification sign-offs.

​The platform's key differentiator is the Diver Dashboard, which transforms raw log data into actionable safety metrics. The RMV Trend Chart displays the diver's Rolling Average RMV (Respiratory Minute Volume), which is the standardized metric for breathing efficiency. This visualization is vital for the Dive Manager to ensure safe buddy pairing based on similar gas consumption rates. Furthermore, integrity for progression is ensured through features like automated Buddy Verification and linking the instructor's official feedback directly to the log entry for training dives.