The Crossroads is a deep wall site on the outer Beecroft Peninsula a few hundred metres north of The Arch, and possibly part of the same reef system. The bottom drops from about 30 m to around 39 m along a wall that McFadyen describes as quite vertical, with depths beyond 40 m possible if you swim away from the structure. Large boulders lie at the base, giving way to sand. The main wall runs north–south, and several cracks cut into it running towards the north-west – perhaps the origin of the name. There may be deeper sections to the east that have yet to be confirmed.

The wall is covered in colourful sponges, sea squirts and sea whips, many hosting tiger anemones. Eastern blue devilfish and pineapplefish shelter in the cracks, yellowtail are abundant, and fur seals sometimes appear from the Beecroft Peninsula colonies.

This is explicitly a decompression dive. McFadyen's account describes about 18 minutes on the wall followed by a five-minute ascent and roughly eight minutes of mandatory decompression, using 27% oxygen as bottom gas and 63% for decompression. The site is therefore suited to technically trained divers with appropriate gas planning. Anchor drift into deeper water is a real risk, so plenty of rope and a surface support plan are needed. Published information is limited – GPS marks were listed as 'to come' – so confidence in the precise location is moderate. For qualified divers it offers pristine deep wall scenery with few other visitors, and the nearby Arch and Whorehouse provide shallower options for the second dive.

Charters depart Huskisson (Dive Jervis Bay; boats in Currambene Creek). Private boats launch at Huskisson, Callala Bay or Murrays Beach (Booderee), or at Currarong's ocean ramp. From Huskisson cross the bay to the entrance and turn north around Point Perpendicular onto the outside of the Beecroft Peninsula; the site is a few hundred metres north of The Arch (about 30 minutes from Huskisson).

Run in from open water as the sounder shows the bottom rising from over 40 m to 30 m and then 25 m, and anchor with plenty of rope because the anchor can drift into deeper water. McFadyen had not yet published GPS marks.

The outer Beecroft Peninsula cliffs face east to south-east and take the full force of any south-easterly or easterly swell; the sites are diveable in swell under about 1.5 m and are well sheltered from south-westerly and westerly winds, which make them the go-to sites in winter. North-easterly winds (common on summer afternoons) make the run from Huskisson across the bay entrance rough and cause surge on the northern-facing cliffs. Visibility is commonly 15–25 m and can reach 30 m in winter when clear oceanic water sits against the peninsula.

Currents along the cliffs are usually mild but can run at the bay entrance on a strong tide change. Defence live-firing closures can shut the sea area – check before going.

Descend to the wall top at about 30 m and follow the vertical face along its north–south line at 35–39 m, investigating the cracks that run north-west. After about 18 minutes at depth ascend over 5 minutes and complete planned decompression stops (McFadyen's example: EAN27 bottom gas, EAN63 for about 8 minutes of stops).

Plan as a light decompression dive: EAN27 (or trimix) bottom gas with EAN50–63 for deco; full redundancy and DSMB.

Technical and experienced divers by arrangement with Jervis Bay operators; private boats.