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Scuba diving guides

Articles on dive skills, certification, dive planning and dive sites.

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Safety & Dive MedicineOctober 5, 202611 min read

Can You Scuba Dive With Asthma? What Medical Guidelines Say

Asthma does not rule out scuba diving. What BTS, UKDMC, UHMS and SPUMS require: lung tests, exercise tests, peak flow limits and inhaler rules on dive days.

Training & CertificationOctober 5, 20269 min read

How Deep Can You Scuba Dive? Limits by Certification, Gas and Narcosis

Maximum scuba depth by certification at PADI, SSI, NAUI, CMAS and BSAC, and why air diving stops near 40 m: narcosis, oxygen, gas use and no-stop time.

Dive DestinationsOctober 1, 20268 min read

Great Barrier Reef Diving: Where to Base, Seasons and Liveaboards

Great Barrier Reef diving by base and season: Cairns vs Port Douglas, Ribbon Reefs and Osprey Reef liveaboards, the Yongala, stingers, minke whales and reef health.

Dive DestinationsOctober 1, 20269 min read

Andaman Islands Diving: Havelock, Neil, Seasons, Permits and Courses

Andaman scuba diving by island and season: Havelock and Neil dive sites with depths, try dives for non-swimmers, Open Water courses, permits and the chamber.

Training & CertificationSeptember 30, 20266 min read

How Long Is a Scuba Dive? Typical Dive Times and What Limits Them

Most recreational dives last 30-60 minutes. Dive time at 10, 18 and 30 m, what ends a dive first (gas or the no-stop limit) and how long try dives last.

Dive DestinationsSeptember 30, 20269 min read

Raja Ampat Diving: Regions, Seasons, Currents, Liveaboard vs Resort

Raja Ampat diving by region and season: Dampier Strait and Misool sites, currents and required level, the marine park fee, liveaboard vs resort, and evacuation.

Safety & Dive MedicineSeptember 29, 20268 min read

Is There a Weight Limit for Scuba Diving? BMI, Fitness and Gear

No training agency sets a body weight limit for scuba. What the medical form asks, where BMI cut-offs exist, what studies say about DCS, and gear sizes.

Safety & Dive MedicineSeptember 29, 20268 min read

Dive Briefing Checklist: What a Good Briefing Covers

What a scuba dive briefing should cover: site, entry and exit, depth and time limits, turn pressure, signals, lost-buddy and emergency plans, with a checklist.

Safety & Dive MedicineSeptember 29, 20268 min read

Diving After Flying: Can You Dive the Day You Land?

Is it safe to scuba dive right after a flight? Why there is no set waiting time, and how dehydration, jet lag, blocked ears and DVT shape your first dive day.

Training & CertificationSeptember 28, 202610 min read

How to Choose a Dive Centre: Safety Checks and Questions to Ask

What a dive centre's agency logo does and does not guarantee, what ISO 24803 requires of operators, published supervision ratios and the questions to ask.