Designed by divers for divers' needs. Divers must keep records of their dive events. Diver's Log Book allows recreational and professional divers to record and preserve the details of each new dive: number, class, location, weather, surface and depth temperatures, visibility, dive depth, pressures, sightings, hazards, and sightings -- anything and everything that makes a dive memorable. With plenty of room for full details of individual dives, the log book also features: Illustrations of international dive flags and hand signals Thorough equipment checklists Equipment maintenance records Personal information pages. The pages for critical personal information are designed for recording vital data such as certification status, medical notes, emergency telephone numbers, and contact information for fellow divers and diving-related companies and organizations. Most important, Diver's Log Book was designed by divers who saw a need for a handy pocket-sized record book that is small enough to stash in a gear bag but big enough to record many seasons' dives.