Crocodile Head is a dramatic headland on the outer Beecroft Peninsula about 1.6 km north of Point Perpendicular, where the sandstone cliffs rise more than 100 m from the sea. Its signature feature is a large L-shaped arch that extends from below the surface – its shallow entrance at 5–7 m – right up to perhaps 20 m above the waterline. In extremely calm seas divers can swim through it, an unforgettable experience with the sky visible through the opening overhead.

The dive also includes several caves. One extends a good distance back beyond the arch's main entrance, and a long, narrow cave runs under the cliff in the inlet to the north. Smaller caves lie west of the shallow entrance. The bottom, around 24 m at the base of the wall, is strewn with boulders full of nooks and crannies.

Fish life is prolific. Luderick, bream and black reef leatherjackets are common, and the site is known for eastern blue devilfish – McFadyen has seen up to seven on a single dive. Wobbegongs, blue groper and schools of yellowtail and sweep are also regulars. Visibility is usually very good. Because the depth range is flexible and the caves can be viewed from outside, the site suits Open Water divers in calm conditions, while more experienced divers can explore the caverns with a torch. Surface conditions dictate the dive: the arch and shallow caves are only safe when the sea is flat. It combines well with The Caves just to the west and the deeper Crocodile Head Gorge to the north.

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; Crocodile Head is about 1.6 km north of Point Perpendicular (30 minutes from Huskisson).

Anchor on the southern side of the head, about 15–20 m off the shore.

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. The arch can only be swum through in extremely calm seas.

Swim to the wall and turn right around the head to the north, explore the main cave, then come back to view the shallow arch entrance at 5–7 m (swim through only if flat). Investigate the smaller caves to the west and return over the boulder bottom, checking the nooks and crannies on the way to the anchor.

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.