Get started with scuba certification prep. Essential equipment, core techniques, and step-by-step guidance for complete beginners. Includes 3 step-by-step workflows.
beginners starting their first scuba diving journey
Review starter guide for scuba diving
Complete setup steps for Scuba Certification Prep
Practice core techniques from Equipment Selection
Apply skills in the Dive Planning workflow
Start with the closest real-world task, then use the mapped tools inside each guide.
Complete guide for scuba certification prep — step-by-step workflow, tools, checklist, and expert tips to get started.
Complete guide for equipment selection — step-by-step workflow, tools, checklist, and expert tips to get started.
Complete guide for dive planning — step-by-step workflow, tools, checklist, and expert tips to get started.
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Reproduce gas availability and demand already selected in one named responsible plan, with explicit cylinder, schedule, allowance and independent records—without generating a bottom time or safety approval.
Reproduce final ballast from one completed buoyancy-check record and compare a separate same-unit total without estimating weight or prescribing a dive procedure.
Reproduce pressure-basis SAC and cylinder-specific surface-volume RMV from one named completed segment, matching cylinder rating records, copied average ATA, and an independent RMV check.
Calculate a user-entered heart-rate-reserve percentage range with the Tanaka age-estimated maximum. Shows formula and limits; never prescribes training zones.
Extrapolate wind speed to hub height using logarithmic wind profile. Free online wind energy calculator with instant, accurate results.
Calculate slope angle and grade from rise and run. Free online skiing and snowboarding calculator with instant, accurate results.
Calculate wind chill temperature from air temperature and wind speed. Assess frostbite risk and dress for outdoor running, hiking, and climbing.
Compare row-count, total-decompression-time and final-runtime checkpoints between two records of the same externally prepared decompression schedule while preserving exact source and version context.
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