Before booking a NorthLink ferry for a Scottish dive trip, ask the operator where it would stow your diving cylinder on the specific sailing. If you will travel without a vehicle, a cylinder cannot go in your hand baggage according to NorthLink’s published policy. Ask about advance reservation of the specialist dive container and whether the carrier will accept your exact configuration and cylinder condition. A compact cylinder’s size does not settle that booking question.
Tell NorthLink how you are traveling
The NorthLink Ferries dive equipment policy describes limited-capacity dive containers for passengers traveling without vehicles. It says they must be booked ahead. It also describes arrangements for passengers carrying cylinders in a vehicle. For fully charged cylinders, its policy calls for dangerous-goods documentation and an in-date test certificate, with documents submitted ahead and originals provided at the port. The operator separately describes its published conditions for a cylinder presented gas-free. Ask which requirements it applies to your sailing and assembled equipment, including what papers it requires and when. A seller’s statement about a cylinder or valve does not provide the ferry’s approval.
Confirm something concrete before paying
Give the carrier your intended outbound and return sailings, whether you are traveling on foot or in a vehicle, and the equipment identification and condition you expect to present. Ask how the carrier will confirm a booking, whether suitable space is available and what would happen if an unexpected change of vessel alters the arrangement. Ask the operator and a qualified dive service provider about any preparation the carrier requires. These are booking checks, not instructions for handling a cylinder.
Other operators have their own policies. For example, Brittany Ferries’ diving equipment FAQ calls for advance contact because permitted quantities can vary by ship. Apply the relevant operator’s instructions to each leg of a trip.
Gather the product details for your inquiry
The TRIMIX T-500 listing identifies a single-cylinder set. If considering one for a particular trip, use the T-500 inquiry to request written identification of the configuration being quoted so you can check it with the operator. The inquiry prepares an email for you to review and send.
Evergreen carrier-policy guide checked November 14, 2026. The two operator pages and the product listing are undated. The NorthLink policy discussed here applies to that operator’s Scottish ferry services.
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