Lonsdale Wall Shallow is a separately mapped boat dive in the Lonsdale wall system. Its published depth range is 12–25 m. The Scuba Doctor describes it as a section used by charter operators to introduce Open Water divers to wall terrain appropriate to their experience and depth limits.

“Shallow” is a relative name, not a complete assessment of suitability. The useful distinction is between a supervised route within your qualification and the deeper part of the recorded site. Treat the site name, proposed depth and operator requirements as three separate things to check.

Arrange a boat departure with a local dive operator. Confirm the harbour, check-in time and meeting address directly; the site coordinate is offshore, not a departure point.

Slack-water planning and an on-site assessment are required. Consult current forecasts and the operator; this record does not provide live conditions.

Descend the shot to the reef top at about 12 m, move to the lip and drop to your ceiling – 18 m for Open Water, 25 m for Advanced – with the wall on one shoulder. Follow the first terrace and its overhangs for 10–15 minutes, then reverse along the next step up, so that the whole dive is a gentle multilevel profile. Turn when the current starts to push, come up the face to the reef flat, shoot a DSMB and drift off the reef for the safety stop.

Dive Victoria Group (Portsea and Queenscliff) – double boat dives to the Heads walls most days of the week, site chosen on the morning by slack-water time and swell; Bayplay Adventure Tours (Portsea) – weekend and holiday charters; Red Boats (Queenscliff) – weekend Heads charters; Melbourne clubs (VSAG, Power House Underwater Club, Scuba Diving Melbourne) run their own boats here regularly.