Perpendicular Point marks the rocky headland at the entrance to Camden Haven near Laurieton, and the reef running off it is both a well-known local fishing mark and a reasonable dive site in its own right, sitting close enough to the Cod Grounds Marine Park that the two are sometimes described together in older dive literature. The point's reef runs from a shallower rocky shelf around ten metres down to sandy gutters and bommies in the twenty-to-thirty-metre range, and it holds the kind of substantial jewfish and kingfish schools that make it popular with anglers as well as divers, alongside typical mid-north-coast reef fish and, at times, grey nurse sharks moving between this area and the nearby marine park. As with much of the Camden Haven diving scene, there is no dedicated dive shop in Laurieton itself, so Perpendicular Point is mainly dived by private boat owners launching from the town's ramp, with occasional visits from Port Macquarie-based charters combining it with a Cod Grounds trip given the short distance between the two.

The site's proximity to the open Camden Haven river entrance means it can be affected by both ocean swell and outflow from the river, so conditions should be checked carefully before heading out, particularly after rain. For divers with their own boat exploring the area beyond the marine park pinnacles, Perpendicular Point offers a worthwhile, moderate-depth reef dive that rounds out a Camden Haven diving day without requiring a long open-water run. Anglers and divers share this mark, so watch for fishing line and be mindful of boat traffic working the same reef from above.

Boats depart the Camden Haven/Laurieton boat ramp on the Camden Haven River and run a short distance, generally under 20 minutes, out past the river entrance to the reef off Perpendicular Point.

This stretch of coast is exposed to easterly and south-easterly swell with limited natural shelter; charters want under about 1.5 m swell and moderate wind to run safely, and the offshore pinnacle sites (Cod Grounds, Mermaid Reef, Yabbies) are cancelled first in marginal weather given the longer run and lack of lee. Visibility is best in autumn and early winter after a run of settled weather and drops noticeably after East Coast Lows and Hastings/Camden Haven River flood outflows. Grey nurse sharks are present year-round with numbers building through winter.

Descend onto the reef off the point and work the rock and gutter structure at 10-30 m, watching for jewfish and kingfish schools typical of this stretch, before returning to the boat at the ramp entrance.

No dedicated dive shop in Laurieton; dived by private boats from the Camden Haven ramp and occasional trips from Port Macquarie operators heading to or from Cod Grounds.