Prebook sports baggage and check the airline's lithium-battery and light-canister rules. Do not fly with a pressurized cylinder. Rent cylinders and weights locally to reduce baggage, but reserve unusual sizes, twinsets, stage bottles, rebreather support, drysuits, and specialty gases. One Leipzig operator publishes seasonal weekend air fills at Kulkwitz and directs Nitrox users to its city shop; confirm current hours and blend capability. Carry regulators, computer, mask, critical prescription items, and properly protected batteries in accordance with airline rules. Use a waterproof vehicle liner, separate wet and dry bags, and enough drying time before the return flight.