Dive logbook guides

Short, practical guides for divers: moving a logbook, reading your own numbers, and choosing the tool that fits.

Keeping a logbook for a course: Advanced Open Water and beyondWhat to record on training dives, how to get them signed, and how to track your certifications and dive count so the next course is easy to book.Best dive log app? Eight questions to ask before you pick oneLooking for the best dive log app? The honest answer depends on you. Eight questions about export, import, offline use and cost that decide which one fits.A dive log for instructors and divemasters: what to look forWhat an instructor or divemaster needs from a dive logbook: dive counts, certification dates, gear service, trips and exports, and what a logbook app is not.Dive logbook software: desktop, web or phone?Dive logbook software lives on a desktop, in a browser or on a phone. What each suits, with Subsurface, MacDive and Shearwater Cloud, and where Loggerfish fits.Garmin Descent dives in a logbook: export the .fit filesHow to get dives from a Garmin Descent into a logbook: export the .fit files from Garmin Connect, bring them in together and check the preview.How to log a dive: what to write down, and what you can skipWhat belongs in a dive log entry, what is worth adding later, and how to log quickly right after surfacing so the habit sticks.Import a Subsurface logbook: step by step, and what comes acrossBring a Subsurface log (.ssrf or .xml) into Loggerfish: save it first, read the preview, choose the numbering, and see what is kept and what is left out.Logging what you see underwater: a sightings list for every diveHow to note the animals you see on a dive, keep names consistent, and turn a season of sightings into a life list, with photos, tags and notes alongside.Nitrox MOD explained: how to work out your maximum depthMaximum operating depth for any nitrox mix, with the formula, worked examples at 1.4 and 1.6 bar, best mix for a depth, and what the number does not tell you.An offline dive log: log dives with no signal, and keep them safeHow to keep a dive log that works on a boat or an island with no signal: what to look for, how syncing and backups fit in, and a short pre-trip checklist.Getting your dives out of the PADI app: the optionsThe PADI app lists no logbook export. What you can do about it: keep a copy, type or paste your dives across, and bring them into a logbook that exports.Paper logbook or dive log app? How to choose, or use bothWhat a paper logbook does well, what an app adds, and how to keep both: print your app log as signed pages, or copy an old paper log into an app in one go.SAC rate explained: how to calculate your air consumptionSurface air consumption in litres per minute from a cylinder, with the formula, a worked example, why it changes and how to read your trend over a season.Shearwater Cloud export: save your dives as UDDFHow to export dives from Shearwater Cloud as a UDDF file, what the file holds, and how to bring it into a logbook that exports again.How to export your SSI logbook (MySSI) and keep your divesGet your dives out of the MySSI app as a spreadsheet, check them in Excel and keep a copy that does not depend on any app. Step by step.Subsurface or Loggerfish? What each one is good forSubsurface and Loggerfish compared on facts: dive computer download, planning, platforms, analysis, import and export, and how to move a log between them.A dive log for technical and decompression dives: what to recordWhat to log on a decompression or technical dive: every cylinder and gas, gas switches, the type of dive, and SAC across several cylinders.

Names such as PADI, SSI, MySSI, Subsurface, Shearwater and Garmin belong to their owners and are used only to say which product we mean. Loggerfish is not affiliated with any of them. What a guide says about them comes from their own public pages, listed beside the statement with the day it was checked. If something is out of date, write to support@loggerfish.com and we will correct it.