Practise before open water when the suit, gloves, housing or lights are unfamiliar. Start with a dry inspection, then confined water without the camera, followed by a simple camera test. Add one change at a time. A task that cannot be completed calmly while maintaining buoyancy and communication is not ready for a winter photo dive.
SSI's Dry Suit Diving page lists a minimum age of 12. It also lists six academic sessions and one confined-water session. The programme has two open-water sessions and a 30 m/100 ft maximum training depth. These facts are programme-specific. Confirm current prerequisites and limits for your route.
After the dive, update the brief. Record which gloves worked, awkward controls, camera gas use, light effects on trim and when thermal comfort fell. Remove one unnecessary accessory before the next attempt. A smaller, repeatable rig is often more useful than a powerful rig that steals attention.
For a supervised plan, message DiveHarbour on WhatsApp at https://wa.me/85294976438. Include certification, recent dry-suit dives, camera, housing, lens, lights, site and any health or confidence question. Confirm fees, dates, equipment and make-up terms in writing; no replacement date is guaranteed.