Meet the site
The Looking Glass is Broughton Island's signature dive and one of the most photographed grey nurse shark encounters in NSW: a natural crack or arch cut clean through the rock in the shape of an inverted V, connecting open water to a chamber on the far side that local guides call the fish bowl, where sunlight streaming through creates a dramatic, almost cathedral-like lighting effect that is central to the site's appeal. Grey nurse sharks are described locally as practically guaranteed here, typically holding station either inside the passage or in the fish bowl beyond it, and the etiquette for the dive has been refined over decades of guiding: divers transit the gap in single file, usually keeping to the left, so that exhaled bubbles rise on one side of the passage while the sharks are left undisturbed on the other. Depths at the Looking Glass are shallow enough — an eight-metre top down to an eighteen-metre bottom — that surge can be a real factor in anything but calm conditions, and groups need to coordinate their approach and timing to avoid being pushed against the rock walls of the passage. Beyond the sharks, numbfish and cuttlefish are commonly seen, and the rare eastern blue devil fish has been recorded in a cave on the neighbouring Looking Glass Wall. The best conditions for the full visual effect are a sunny day with the sun close to overhead, when light penetrates the passage and chamber most dramatically; overcast days still deliver the sharks but lose much of the site's celebrated lighting. Because of the shallow depth and the crowd-pleasing combination of striking topography and reliable megafauna, the Looking Glass is dived on almost every Broughton Island trip and stands as one of the true must-do dives on the entire NSW coast.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Broughton Island – Looking Glass is recorded as Cave/Cavern in Port Stephens. The listed access is boat. Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Topics flagged by the stored research
These are questions prompted by the existing notes, not a verified or complete hazard assessment.
- Water movement
- Ask how swell and local exposure affect the proposed entry, exit and route.
Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.
Questions, answered
Is Broughton Island – Looking Glass suitable for my certification?
The record lists Advanced Open Water. That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.
Can I book Broughton Island – Looking Glass through YouDive?
YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.
What you might see
Grey nurse sharks (practically guaranteed), numbfish, cuttlefish, eastern blue devil fish (rare, nearby cave)
Location
A crack/arch through the rock at Broughton Island's northern grey nurse shark critical habitat, shaped like an inverted V, with a natural 'fish bowl' chamber on the far side lit dramatically by the sun.
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
diveplanit.compadi.commudgeediveandtravel.comRecord updated 26 Sept 2026. Source claims are being reviewed.