The Torpedo Tubes take their name from the concrete remnants of a naval torpedo-testing facility on the northern shore of Jervis Bay, inside Point Perpendicular. The Navy has used Jervis Bay for training and weapons trials for more than a century, and the structures are a visible reminder of that history on a coastline that is still Defence land.

McFadyen admits he had not dived it himself but notes that everyone tells him it is very good, that it is protected from northerly winds and seas, and – memorably – that the fish here are very aggressive and have been known to attack divers and their boats. The culprits are usually swarms of one-spot pullers and sweep, habituated to being fed, which crowd around divers and nip at hair and exposed skin. It is more comical than dangerous, but it gives the site its reputation. Beyond the fish, the reef supports blue groper, cuttlefish and sponge-covered boulders, with depths from about 8 m to 25 m. The Currarong Community Association lists 'The Tubes' among the bay sites reached via Long Beach when the range is open.

The site is sheltered, moderate in depth and easy to navigate, so it suits Open Water divers and makes a good second dive or a fallback in northerly weather. Published detail on the precise layout is thin, so confidence is moderate. Divers should not feed the fish, and boats should anchor clear of the historic structures. Point Perpendicular's caves and sponge gardens lie just to the east for more adventurous dives.

Charters depart Huskisson (Dive Jervis Bay; boats in Currambene Creek), and private boats launch at Huskisson, Callala Bay or Murrays Beach. Cross the bay north-east towards the Beecroft Peninsula shore; the Torpedo Tubes are the concrete structures of the former naval torpedo range on the inside of Point Perpendicular, about 15–20 minutes from Huskisson. The site can also be viewed from land when the Beecroft Weapons Range is open.

Anchor off the structures on the reef.

The northern shore of Jervis Bay is sheltered from all ocean swell except a large south-easterly rolling in through the entrance, and it is protected from northerly and north-easterly winds by the Beecroft Peninsula, which makes it the standard summer venue when afternoon nor'easters roughen the outer coast. Strong southerly and south-westerly winds blow across the bay and make the northern shore choppy and the crossing from Huskisson wet. Visibility varies considerably with sea state and rainfall – typically 8–20 m.

Tidal currents are weak except near Point Perpendicular and the entrance.

Descend near the structures and explore the reef edges and boulders at 10–15 m, moving deeper towards 20–25 m if desired, and return along the shallower reef. Keep hands and fins tucked in when the bold one-spot pullers and sweep crowd in.

Dive Jervis Bay (Huskisson; boats Avalon and Genesis) runs double boat dives most days, and Deep 6 Diving Jervis Bay / other Huskisson operators also visit; site chosen on the day according to swell and wind.