Byron Bay · New South Wales
Scuba Diving at Julian Rocks (Nguthungulli)
Where tropical and temperate waters meet — more than 20 shark and ray species recorded.
Julian Rocks lies approximately 2.5 kilometres from Byron Bay, inside the Cape Byron Marine Park. It is a short boat ride from the beach, which makes it one of the most accessible world-class dive sites in Australia.
The ecological importance of the site comes from the meeting of tropical and temperate influences. Warm water arriving on the East Australian Current mixes with cooler temperate water, and species from both systems occur here together.
More than 20 species of sharks and rays have been recorded around the area. On a good day divers see leopard sharks, wobbegongs, rays and turtles on a single dive.
The site works for a wide range of experience levels because it offers shallow gutters and swim-throughs alongside deeper edges, and operators select the route to match the group and conditions.
Recommended: Open Water Diver. Parts of the site reach 25 m, which needs Advanced Open Water Diver. What can I dive with my cert?
Max depth
25 m
typically 15 m
Access
boat
Current
variable
Water temp
19–26°C
Level
beginner
up to advanced
| Region | Byron Bay |
|---|---|
| State | New South Wales |
| Access | boat |
| Site type | reef, island |
| Minimum depth | 4 m |
| Typical depth | 15 m |
| Maximum depth | 25 m |
| Current | variable |
| Visibility | Commonly 10–30 m |
| Water temperature | Roughly 19–26°C |
| Experience level | beginner, intermediate, advanced |
These are guidance categories, not guarantees. Conditions on the day, and an operator’s own requirements, override any classification here.
- loggerhead turtles
- green turtles
- leopard sharks
- grey nurse sharks
- manta rays
- eagle rays
- wobbegongs
- nudibranchs
- schooling trevally and kingfish
Seasonality
- Late summer commonly brings warmer water and strong tropical influence, including leopard sharks and manta rays.
- Cooler periods can increase the likelihood of grey nurse shark encounters.
- Humpback whales pass offshore during migration and are sometimes heard underwater.
The best period depends entirely on what the diver wants to see. Someone hoping for manta rays and leopard sharks should target late summer. Someone hoping for grey nurse sharks should target the cooler months.
This makes Julian Rocks an unusually good illustration of a general principle: seasonality questions about dive sites are usually really questions about species.
Julian Rocks is small enough that most of it is diveable across a few visits, and different features suit different conditions.
- the Nursery — shallow and sheltered, good for beginners
- Cod Hole — a short swim-through often holding wobbegongs and grey nurse sharks
- the Needles — pinnacles and swim-throughs
- Hugo's Trench — deeper terrain on the northern side
- Cray Cave — an overhead feature requiring appropriate conditions
Julian Rocks sits within a sanctuary zone of the Cape Byron Marine Park. Nothing may be taken, and the marine life is habituated to divers precisely because it has been protected.
Access
- Boat access from Byron Bay, typically a beach launch.
- Short transit — usually under fifteen minutes.
- Trips are weather-dependent given the exposed beach launch.
Hazards
- current, which varies across the site
- surge in the shallow gutters and swim-throughs
- boat traffic in the area
- overhead in the Cod Hole and Needles swim-throughs
Marine Life at Julian Rocks (Nguthungulli)
Species documented at this site, with seasonality and etiquette on each page.
Businesses documented as regularly diving this site.
Sundive Byron BayByron BayPADIByron Bay's PADI 5 Star dive centre, running three daily departures to Nguthungulli Julian Rocks with training from Try Scuba to Divemaster.BoatCoursesAdvancedProNitroxPoolSource-backed profileByron Bay Dive CentreByron BayPADISSIByron Bay's original dive centre, running daily Julian Rocks dive and snorkel trips from The Pass with PADI and SSI training and an onsite pool.BoatCoursesAdvancedPoolHireSource-backed profile
Blue Bay DiversBrunswick HeadsA Brunswick Heads charter running the 8.5-metre catamaran Bay Warrior to Julian Rocks and less-visited Byron sites such as Windarra Banks and the Cape Pinnacle.BoatSource-backed profileUseful Training for Diving Julian Rocks (Nguthungulli)
Not a list of everything available — the qualifications that actually change what you can do at this site.
Dive Sites Similar to Julian Rocks (Nguthungulli)
Worth reading alongside this one.
Planning Guides for Diving Julian Rocks (Nguthungulli)
Practical guides selected from this site's access, environment, wildlife and experience profile.
Dive Sites Near Julian Rocks (Nguthungulli)
Other documented sites within range, nearest first — useful for building a trip rather than a single dive.
Other Dive Businesses Near Julian Rocks (Nguthungulli)
Not documented as servicing this site, but close enough to be useful for fills, hire or advice.
Julian Rocks (Nguthungulli) Diving FAQs
How deep is Julian Rocks (Nguthungulli)?
Depths range from around 4 metres to roughly 25 metres, with a typical profile around 15 metres. Conditions and route selection change this considerably.
Is Julian Rocks (Nguthungulli) suitable for beginners?
It can be, in reasonable conditions and with appropriate supervision. Conditions on the day matter more than certification level, and operators may impose their own requirements.
How do you get to Julian Rocks (Nguthungulli)?
Boat access from Byron Bay, typically a beach launch. Short transit — usually under fifteen minutes.
Is there current at Julian Rocks (Nguthungulli)?
Current is recorded as variable. Conditions vary daily and should be checked close to the day.
What will I see at Julian Rocks (Nguthungulli)?
Commonly reported marine life includes loggerhead turtles, green turtles, leopard sharks, grey nurse sharks, manta rays, eagle rays. Sightings are never guaranteed, and several species here are strongly seasonal.
When is the best time to dive Julian Rocks (Nguthungulli)?
Late summer commonly brings warmer water and strong tropical influence, including leopard sharks and manta rays. Cooler periods can increase the likelihood of grey nurse shark encounters. Humpback whales pass offshore during migration and are sometimes heard underwater. There is rarely a single best month — the right time depends on what you want to see.
Where is Julian Rocks (Nguthungulli)?
Julian Rocks (Nguthungulli) is in the Byron Bay region of New South Wales.
Last researched: September 2026. Dive businesses change frequently — confirm current services, prices and requirements directly with the operator before booking.