Nguthungulli Julian Rocks and Frequently Asked Questions

See what you can expect to spot at Nguthungulli Julian Rocks each month.

Did you know Julian Rocks Marine Reserve, where our dive sites are located, has been likened to a ‘mini Galapagos’ (Lonely Planet 2014) and one of the best dive spots in Australia (The Australian 2011)?

The Lonely Planet also rated Byron Bay in the top ten places in the world to learn to dive. With our dive sites just 2.5 km offshore, you won’t spend hours on a boat every time you go diving, although in the 5 minutes it takes to get there, you can see dolphins playing in the bay or whales as they migrate past in winter.

Underwater, the summer months bring in manta rays and leopard sharks, whilst the cooler winter waters attract the endangered grey nurse sharks. In addition, turtles, rays, crustaceans, nudibranchs, octopus, eels and a plethora of fish populate our dive sites, thanks to our marine park status and strict local laws restricting the number of boat launches.

Then there’s Byron Bay itself; with its laid back attitude, stunning scenery, endless beaches, epic surf breaks, thriving nightlife and stunning hinterland nature reserves, this town has it all. It’s no wonder that this iconic coastline is one of Australia’s most popular holiday destinations. Great food and a flourishing arts, culture and live music scene means there is always somewhere to go or something to do when you’re not diving.

January

Leopard shark
Manta ray
Eagle ray
Wobbegong
Loggerhead turtle
Green turtle
Hawksbill turtle
Octopus
Macro life

Australian Summer: Water temp can vary between 21 and 26 °C. Summer at Nguthungulli Julian Rocks is host to the largest known aggregation of Indo-Pacific leopard sharks in the world! Leopard sharks like water temperatures above 23 °C so they do come and go throughout the season. Summer is also a great time to encounter reef manta rays, eagle rays, three species of wobbegongs, three species of sea turtle, abundant macro life and invertebrate life as well as over 1000 different marine species and over 530 species of tropical and temperate fish.

Book now

February

Leopard shark
Manta ray
Eagle ray
Wobbegong
Loggerhead turtle
Green turtle
Hawksbill turtle
Octopus
Macro life

Australian Summer: Water temp can vary between 21 and 26 °C. Summer at Nguthungulli Julian Rocks is host to the largest known aggregation of Indo-Pacific leopard sharks in the world! Leopard sharks like water temperatures above 23 °C so they do come and go throughout the season. Summer is also a great time to encounter reef manta rays, eagle rays, three species of wobbegongs, three species of sea turtle, abundant macro life and invertebrate life as well as over 1000 different marine species and over 530 species of tropical and temperate fish.

Book now

March

Leopard shark
Manta ray
Eagle ray
Wobbegong
Loggerhead turtle
Green turtle
Hawksbill turtle
Octopus
Macro life

Australian Autumn: Water temp can vary between 21 and 26 °C. Autumn is a changeover period with leopard sharks departing in May and grey nurse sharks making an appearance. Humpback whales start to appear in June on their Northerly migration. Autumn is a great time to encounter eagle rays, three species of wobbegongs, three species of sea turtle, abundant macro life and invertebrate life as well as over 1000 different marine species and over 530 species of tropical and temperate fish.

Book now

April

Leopard shark
Manta ray
Eagle ray
Wobbegong
Loggerhead turtle
Green turtle
Hawksbill turtle
Octopus
Macro life

Australian Autumn: Water temp can vary between 21 and 26 °C. Autumn is a changeover period with leopard sharks departing in May and grey nurse sharks making an appearance. Humpback whales start to appear in June on their Northerly migration. Autumn is a great time to encounter eagle rays, three species of wobbegongs, three species of sea turtle, abundant macro life and invertebrate life as well as over 1000 different marine species and over 530 species of tropical and temperate fish.

Book now

May

Leopard shark
Grey nurse shark
Manta ray
Eagle ray
Wobbegong
Loggerhead turtle
Green turtle
Hawksbill turtle
Octopus
Macro life

Australian Autumn: Water temp can vary between 21 and 26 °C. Autumn is a changeover period with leopard sharks departing in May and grey nurse sharks making an appearance. Humpback whales start to appear in June on their Northerly migration. Autumn is a great time to encounter eagle rays, three species of wobbegongs, three species of sea turtle, abundant macro life and invertebrate life as well as over 1000 different marine species and over 530 species of tropical and temperate fish.

Book now

June

Grey nurse shark
Eagle ray
Wobbegong
Loggerhead turtle
Green turtle
Hawksbill turtle
Octopus
Macro life
Humpback whale

Australian Winter: Water temp can vary between 18 and 21 °C. The colder water of winter makes for the strongest season to encounter grey nurse sharks and humpback whales on the boat ride. Throughout winter we have eagle rays, three species of wobbegongs, three species of sea turtle, abundant macro life and invertebrate life as well as over 1000 different marine species and over 530 species of tropical and temperate fish.

Book now

July

Grey nurse shark
Eagle ray
Wobbegong
Loggerhead turtle
Green turtle
Hawksbill turtle
Octopus
Macro life
Humpback whale

Australian Winter: Water temp can vary between 18 and 21 °C. The colder water of winter makes for the strongest season to encounter grey nurse sharks and humpback whales on the boat ride. Throughout winter we have eagle rays, three species of wobbegongs, three species of sea turtle, abundant macro life and invertebrate life as well as over 1000 different marine species and over 530 species of tropical and temperate fish.

Book now

August

Grey nurse shark
Eagle ray
Wobbegong
Loggerhead turtle
Green turtle
Hawksbill turtle
Octopus
Macro life
Humpback whale

Australian Winter: Water temp can vary between 18 and 21 °C. The colder water of winter makes for the strongest season to encounter grey nurse sharks and humpback whales on the boat ride. Throughout winter we have eagle rays, three species of wobbegongs, three species of sea turtle, abundant macro life and invertebrate life as well as over 1000 different marine species and over 530 species of tropical and temperate fish.

Book now

September

Grey nurse shark
Eagle ray
Wobbegong
Loggerhead turtle
Green turtle
Hawksbill turtle
Octopus
Macro life
Humpback whale

Australian Spring: Water temp can vary between 18 and 23 °C. Humpback whales migrate southwards in early spring. Grey nurse sharks are still in abundance as well as eagle rays, three species of wobbegongs, three species of sea turtle, abundant macro life and invertebrate life as well as over 1000 different marine species and over 530 species of tropical and temperate fish.

Book now

October

Grey nurse shark
Eagle ray
Wobbegong
Loggerhead turtle
Green turtle
Hawksbill turtle
Octopus
Macro life
Humpback whale

Australian Spring: Water temp can vary between 18 and 23 °C. Humpback whales migrate southwards in early spring. Grey nurse sharks are still in abundance as well as eagle rays, three species of wobbegongs, three species of sea turtle, abundant macro life and invertebrate life as well as over 1000 different marine species and over 530 species of tropical and temperate fish.

Book now

November

Grey nurse shark
Eagle ray
Wobbegong
Loggerhead turtle
Green turtle
Hawksbill turtle
Octopus
Macro life

Australian Spring: Water temp can vary between 18 and 23 °C. Humpback whales migrate southwards in early spring. Grey nurse sharks are still in abundance as well as eagle rays, three species of wobbegongs, three species of sea turtle, abundant macro life and invertebrate life as well as over 1000 different marine species and over 530 species of tropical and temperate fish.

Book now

December

Leopard shark
Grey nurse shark
Manta ray
Eagle ray
Wobbegong
Loggerhead turtle
Green turtle
Hawksbill turtle
Octopus
Macro life

Australian Summer: Water temp can vary between 21 and 26 °C. Summer at Nguthungulli Julian Rocks is host to the largest known aggregation of Indo-Pacific leopard sharks in the world! Leopard sharks like water temperatures above 23 °C so they do come and go throughout the season. Summer is also a great time to encounter reef manta rays, eagle rays, three species of wobbegongs, three species of sea turtle, abundant macro life and invertebrate life as well as over 1000 different marine species and over 530 species of tropical and temperate fish.

Book now

Average Visibility — Nguthungulli Julian Rocks

Monthly range shown as bars (5–20 m). Red line shows the overall average (8 m). Visibility is influenced by currents and can vary day-to-day and even between dives.

Annual Water Temperature — Nguthungulli Julian Rocks

Typical monthly sea temperatures (°C). Hover or tap for details.

Weather & safety Trips (esp. snorkelling) are weather dependent. If we cancel, you can reschedule or get a full refund.
Cancellations Under 6 ppl: 24h • 6–11 ppl: 72h • 12+: 7 days. Courses (not Try/Refresher/ReActivate): 7 days.
Medical & age Clearances may apply (e.g. 65+, SPUMS for some). All guests must be able to swim 200 m unassisted.
Payments & refunds Square 2.2% fee. If you cancel, fee not refunded (or choose a GV). If we cancel, full refund incl. fee.

Frequently Asked Questions

How do bookings work?
Our website shows live availability. All bookings are made online and are confirmed with either a 25% deposit (courses are paid in full) or full payment if booking within 24 hours of departure. If an activity says “PLEASE EMAIL”, contact bookings@sundive.com.au.
How are payments handled?
We use Square for card payments. If only a deposit is paid, the remaining balance is auto-charged the day before your trip. Square’s card fee is 2.2%.
What’s your cancellation policy?
You’re reserving a limited boat space and we roster staff the day before.
  • Under 6 people: 24 hours’ notice
  • 6–11 people: 72 hours
  • 12+ people: 7 days
Dive courses (not Try Scuba/Refresher/ReActivate) require 7 days’ notice. If you choose not to partake on the day, we can’t refund or reschedule.
How do refunds work?
Refunds are issued via Square and typically appear in 2–7 business days (bank/card dependent). If you cancel, Square’s 2.2% card fee isn’t refunded (you may choose a gift voucher instead). If Sundive cancels, we issue a full refund including the card fee.
Are trips weather dependent?
Yes — especially snorkelling. Visibility is impossible to predict and can vary daily and even between dives. If we cancel due to conditions, it’s for safety; you can reschedule or receive a full refund. We appreciate kindness toward our team; rudeness/aggression is not tolerated.
Do you accept gift vouchers? How do I use one?
Yes. Gift vouchers are non-refundable, valid for 3 years, and can be used for any Sundive activity or in-store purchase (even if the voucher text mentions a specific activity). At checkout, choose “Pay by Gift Voucher” and enter your GV code. Please review our policies and prerequisites before purchasing.
Where can I park?
We don’t have customer parking. There’s metered street parking on Middleton Street and free parking outside the metered zone (past the tennis courts), about a 10–15 minute walk. Official info:
Pay parking in Byron Shire
Where can I park? (maps & time limits)
Can a certified diver join a Try Scuba participant?
Yes — book one of the limited Try Scuba spaces at the same time. Pool participation is optional for the certified diver. Try Scuba and certified dives may depart separately, so same-boat isn’t guaranteed if booked separately.
What time should I arrive?
Your booked time (7:15, 10:15, or 13:15) is the check-in time. Please don’t arrive earlier — your guide will be ready at that time. Meet at the Sundive shop on Middleton Street.
What proof of certification do I need?
Certified divers must show visual proof (physical or digital card) with photo, name, certification level, and certifying body. Logbooks aren’t proof. If you need us to look up your certification, please email us at least 24 hours before diving. If proof can’t be shown/found on the day, we can’t take you diving and no refund/changes can be given.
Medical conditions, waivers & age rules
Trips are offshore at Nguthungulli Julian Rocks without immediate medical facilities and can involve strenuous activity. Certain medical conditions or device requirements (e.g. epi-pen, inhaler) mean we can’t take you and no refund/credit/reschedule is available on the day.

Age: Divers/snorkellers 65+ need a doctor’s clearance (last 12 months; includes strenuous activity). Divers 70+ need a SPUMS (or equivalent) medical (diving only). Starting PADI Open Water at 55+ also requires a valid dive medical. Certified divers under 18 must be accompanied by a certified parent/guardian on the dive. Minimum age to dive in a certified group is 12 (Junior Open Water; private instructor required for 11). Minimum snorkel age is 7. Minimum Try Scuba age is 12 (parental permission required).

If you can’t agree to the waiver due to a past/current medical issue, a SPUMS recreational diving medical is required before diving/snorkelling.
Fitness level & launch safety
We launch through surf; boarding can be time-sensitive and the ride can be bumpy. Guests must be able-bodied, react quickly, board during launch, and climb the ladder post-dive. Trips are unsuitable for back problems/injuries aggravated by motion. All participants must be able to swim 200 m unassisted.
Swimming ability & snorkel requirements
All activities are in the open ocean and can be choppy. Everyone (including snorkellers and Try Scuba) must be a strong swimmer capable of 200 m unassisted. Snorkelling at Julian Rocks is an open-ocean experience; previous snorkelling experience is mandatory.
Diving ability & language
Conditions may include swell, current, surge, and cool water. Divers must have the fitness, confidence and competence to dive such conditions and follow a guided group. If unsure, please book a private guide. Minimum certification is Open Water Diver (PADI Scuba Diver and similar must book a private guide). Briefings are in English; understanding and communication in English are required for safety.

If you haven’t dived in 2 years, a Refresher is required; in 4+ years, a PADI ReActivate is required.
Weight & sizing restrictions
Upper weight limit is 118 kg (fully clothed). We use wetsuits as flotation for launch and carry sizes XS–XL. If you don’t fit our sizes, bring your own suitable wetsuit. If you don’t fit on the day and can’t provide your own, we can’t take you and we can’t reschedule, credit or refund.
Pregnancy
Scuba diving while pregnant is not permitted. Snorkelling in the third trimester is also not permitted. Due to dynamic conditions and launch demands, we recommend avoiding snorkelling during all stages of pregnancy.
Directions