Snorkeling the Great Barrier Reef: your options
Great Barrier Reef snorkeling starts with a boat. Most visitors take a day trip from Cairns, Port Douglas or the Whitsundays to a pontoon, a floating platform moored at the outer reef. Others choose a sailing trip to Low Isles or a ferry to Green Island.
A fare usually covers the crossing, snorkel gear and a meal, and some trips add a glass-bottom boat or a semi-submersible. Optional dives cost extra. Check what your fare includes before you compare prices.
Our picks: Great Barrier Reef snorkelling trips
Our take: the full-day cruise gives five hours at two outer reef sites, the half-day fast-boat trip fits when you only have a morning. Low Isles is the gentler option on the inner reef. A dive on the full-day cruise needs the dive package.
Hand-picked tours, booked through GetYourGuide. Prices are indicative starting prices in Australian dollars (as of October 2026). Tap a tour for live availability and the current price in your currency.
Full-day outer reef cruise with two reef sites
- Two outer reef sites
- Five hours at the reef
- Lunch, wine and cheese
Two outer reef sites and about five hours on the reef, with lunch on board. A dive is only part of the dive package you choose when booking, otherwise it is a snorkel day.
Check availability →
Low Isles by glass-bottom boat with guided snorkel
- Glass-bottom boat both ways
- Guided snorkel tour
- Muffins, fruit, tea and coffee
Low Isles is an inner reef island close to Port Douglas, not the outer reef. The 4-hour trip includes a guided snorkel and a lycra suit.
Check availability →
Half-day snorkel trip to the reef by fast boat
- Snorkel guide
- Seasonal stinger suit
- GoPro photos
Four hours with a fast boat to the reef and a snorkel guide, which suits a short stay. Stinger suits in season and GoPro photos are included.
Check availability →Great Barrier Reef snorkeling tours
Pontoon day trips, island trips and sailing tours with snorkel gear, with live prices and availability.
Snorkel trips compared
Adult and child fares in 2026. Each row is one trip and the extras differ, so read the last column.
| Trip | Adult | Child | What to know |
|---|---|---|---|
| Moore Reef pontoon from Cairns | A$317 | A$177 (ages 4 to 15) | About 90 minutes each way, leaves 10:15, back 17:30. Snorkel gear and lunch included, dives extra. Family fare A$816. |
| Agincourt Reef pontoon from Port Douglas | A$338 | A$179 (ages 4 to 14) | Boarding 09:30, departs 10:00, 3.5 hours at the reef. Reef fee included. Under 4 free. Family fare A$864. |
| Hardy Reef pontoon from Airlie Beach, Hamilton or Daydream Island | from A$295 | from A$145 (ages 4 to 14) | About 4 hours at the pontoon. Reef fee, stinger suits, semi-sub and food included. Family fare from A$809. |
| Low Isles sailing trip from Port Douglas | A$276 (age 15 and up) | A$148 (ages 4 to 14) | Reef fee and GST included. Family fare A$710. |
| Green Island ferry from Cairns | A$112 | A$56 | Return fare. With snorkel gear or a glass-bottom boat A$127 adult, A$68 child. With both A$156 adult, A$85 child. |
The Moore Reef fare includes the fuel surcharge. The Hardy Reef fare is dynamic and may change by date, and Visa or Mastercard payments add 1.42 percent on that booking. Optional extras and surcharges differ by operator.
For most first-time visitors, an outer reef pontoon trip gives the most time over coral. If you have less time or a smaller budget, the Green Island ferry is the cheaper way to get into the water. See our guide to Green Island for the crossing and the beach.
Great Barrier Reef snorkel tour: how to choose
Four questions that settle most decisions.
Where do you start?
The reef you reach depends on your port. Cairns trips go to Moore Reef, Port Douglas trips go to Agincourt Reef and Low Isles, and Airlie Beach, Hamilton Island and Daydream Island trips go to Hardy Reef. A Whitsundays island cruise is not automatically a visit to an outer reef pontoon.
Reef tours compared →Outer reef or closer to shore?
The reef has inshore fringing reefs, mid-shelf reefs and outer reefs. "Inner reef" is not one quality class, so ask for the exact reef name and what you can expect there.
How long do you want in the water?
Agincourt gives 3.5 hours at the reef and Hardy Reef about 4 hours at the pontoon. The Moore Reef crossing takes about 90 minutes each way, which is part of the day.
Do you want to dive too?
Some pontoons offer introductory and certified dives on top of the fare. Details and prices are on our diving page.
Stingers: what to wear and what to do
Box jellyfish and Irukandji jellyfish can be life threatening. The higher-risk season is mostly November to May, but stingers can occur all year. Do not plan on a stinger-free winter. At Green Island jellyfish are possible in any season.
- Wear a full-body suit. Lycra or neoprene is the protective measure. Some trips include suits in the fare, so ask.
- Treat nets as a help, not a guarantee. Stinger enclosures protect well against box jellyfish but are not completely stingerproof. If a beach is closed, do not swim, even where a net is in place.
- In an emergency call 000. For tropical stings, apply vinegar and get medical help. Irukandji symptoms can appear 20 to 40 minutes after the sting.
- Never snorkel alone. Use a buddy, sun cream and protective clothing.
Season, water and stingers all feed into the choice of month. Our best time to visit page covers it.
Reef rules for snorkelers
The reef is a living marine park. The rules are simple and they apply to everyone in the water.
- Do not touch corals or animals, and do not lean on coral or stand on it.
- Do not chase animals or block their path.
- Pass giant clams at more than 1 m (3 ft).
- Do not take anything, not even dead coral, without the right permit.
The reef fee for a full day of 3 hours or more in the Marine Park is A$8.50 per person in 2026 (A$4.25 under 3 hours). Operators collect it, and some include it in the fare. A rise to A$9.00 and A$4.50 is announced from 1 April 2027. If you want to know how the reef is doing, read our page on coral bleaching.
More to plan
Pages that go with a snorkeling trip.
Great Barrier Reef snorkeling: frequently asked questions
Do I need my own snorkel gear?
Not on the pontoon trips above. The Moore Reef fare includes snorkel gear, and the Hardy Reef trip includes stinger suits. On the Green Island ferry, gear is part of a package that costs more than the plain return fare.
Is the reef fee included in the price?
On the Agincourt, Hardy Reef and Low Isles fares in this guide, yes. Fees and surcharges differ by operator, so check the fare conditions.
Can I snorkel in winter?
Trips run through the year, and the main stinger season is November to May. Stingers can occur at any time, so wear a suit whenever the operator advises it.
Will I see turtles?
You might. Animal sightings and visibility change by day and by site, and no operator can promise either. Keep your distance and never chase an animal.
Can I snorkel at Heart Reef?
Not at the heart formation itself. Trips with snorkeling use the neighboring lagoon. See our scenic flights page for the options.
Is this the official website of the Great Barrier Reef?
No. This is an independent travel guide. It is not connected to the Marine Park Authority, a tourism body or any tour operator.