Smythson have released this journal specifically for Scuba diving enthusiasts. The Smythson Scuba Diving Journal is a log book in which divers can record the details of their dives such as the date, dive number, location, time in water, visibility, depth, bottom line, verification signature, instructor/divemaster/buddy, dive from, weight, equipment, temperature, diving conditions, under water geography, aquatic life and other comments. The journal is made of black pigskin leather with pale blue featherweight paper pages.