Useful first accessories include a dive gear bag, mask defog solution, clips or retainers, spare parts appropriate to your equipment and signaling equipment. The best accessories solve a genuine problem in your diving rather than simply adding more equipment to carry.

A basic save-a-dive kit commonly contains replacement O-rings and other manufacturer-approved spare items appropriate to your equipment. The contents should reflect the gear you own and the type of diving you do. Equipment repairs and servicing beyond simple user-replaceable parts should be handled by a qualified technician.