If delay, damage or local unavailability could stop you travelling, taking essential medication or starting the first dive day safely, keep the item with you where rules allow or confirm a backup.
Sort each item by the consequence of losing it: keep critical gear with you, protect bulkier equipment in checked luggage or confirm local supply.
Use cabin space for travel-critical, medically essential, fragile, personal-fit or hard-to-replace items whose loss could stop the trip or first dives.
Carrying your regulator in the cabin is a practical preference when allowance permits, not a universal requirement; airline and security rules still apply.Use checked luggage for bulky, robust equipment. Dry and protect it, then pack a lightweight mesh gear bag flat inside for boat days.
A lightweight mesh gear bag keeps gear together on deck, drains quickly and simplifies end-of-day rinsing where permitted.Leave heavy or operator-controlled equipment at home only after the operator confirms tanks, weights, gases, valve type and rental fit.
Save the confirmation offline; “normally supplied” is not the same as confirmed for your booking.Tick the boxes as you pack or print a copy. Confirm operator details before leaving home.
Prefer paper? The PDF is a compact paper copy. Use this page for trip adjustments and current source links.
The checklist above is the item list. Use these rules to decide which spares are useful, how power travels and whether a tool belongs in the bag.
Carry equipment-specific spares you can diagnose and replace safely. A larger toolkit cannot replace a trained technician or proper service bench.
Keep chargers with their devices, carry only what you expect to use and apply the complete battery guidance below on every flight.
Tools and knives remain subject to airline, security, destination-law and operator rules. Do not assume that checked baggage makes an item legal or acceptable.
Battery rule: Spare lithium batteries and power banks belong in cabin baggage. Protect terminals individually, check watt-hour and quantity limits, and obtain airline approval where required. If a cabin bag is gate-checked, remove them first. Recheck CASA, IATA and every operating airline because carrier requirements may be stricter or change.
Flying after diving: Do not rely on a universal 24-hour guarantee. Follow your dive computer, the operator’s plan and current diving-medical guidance, and build the advised surface interval into the itinerary.
Start with the master checklist, then add only the changes that match your itinerary.
Work backwards so passport, service, medical, insurance, rental and battery problems are found in time to fix them.
Lock the itinerary, check entry rules, medical needs, insurance confirmation and equipment service status. For a first international dive holiday, use the First overseas preparation guide before making last-minute gear changes.
Lay out the complete list, inspect fit and condition, verify baggage allowances and recheck the operating airline’s cabin, battery and tool rules.
Charge devices, complete the battery check, download documents, dry gear, weigh each bag and resolve every unticked operator confirmation.
Keep cabin-critical items together. If a cabin bag is gate-checked, follow the battery guidance before handing it over. Before flying after diving, follow the no-fly plan from your computer, operator and current medical guidance.
No universal rule makes regulator carry-on mandatory. It is a practical preference because the regulator is familiar, valuable and vulnerable to delay or rough handling. Follow cabin and security limits, or protect it well and confirm a rental backup.
Only after direct confirmation. Ask about tanks, weights, gases, valve type, exact rental sizes, configuration and reservation status. “Normally rented” is not a confirmed fit or reservation.
Only when airline, security, destination and operator rules allow it. Follow their packing instructions and leave the item at home if any rule is unclear.
Before closing the bags, ask one question:
“If my checked bag arrived tomorrow, could I still travel, take essential medication and safely start the first dive day?”
If not, move the trip-critical item to cabin baggage where permitted or arrange a confirmed operator backup. Keep airline, security and destination rules in the decision.
Need help with a specific item? Ask Abyss a packing question.
Trusted by Sydney divers