Great Barriers Reef








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Discover the Great Barrier Reef from Port Douglas

Port Douglas is one of the best launch points for exploring the Great Barrier Reef. Whether you're looking for an action-packed day of scuba diving on the Outer Reef or a laid-back snorkeling trip to the Low Isles, you’ll find a tour that fits your style.

How to choose the right Great Barrier Reef tour from Port Douglas

  • Outer Reef vs Low Isles: The Outer Reef is best for snorkeling and diving, you can explore deep coral walls and rich marine life. Tours include full-day itineraries and multiple reef stops. Low Isles tours are ideal for families, first-time snorkelers, and those prone to seasickness. These islands are close to the mainland, with half-day and full-day tours in the lagoons.

  • Half-day vs full-day tours: Half-day tours are great if you're short on time or traveling with kids. Expect 3.5–4 hour durations with snorkeling gear included. Full-day Outer Reef tours go up to 8 hours at sea with snorkeling, scuba diving (optional), marine talks and onboard lunch.

  • For non-swimmers: Choose tours with semi-submersible boats, underwater observatories, and glass-bottom boats. These allow reef viewing without getting in the water.
  • Sunset vs day tours: Sunset tours are lower in cost and a great way to end the day on a relaxed note, you can sip a drink, enjoy light snacks, and watch the sun set over the horizon. For a full day of snorkeling, diving, and reef exploration, join a daytime tour for the complete experience. 
  • Booking flexibility: Morning and afternoon departures, especially to the Low Isles make it easy to fit in a reef visit with other Port Douglas plans.

Plan your Great Barrier Reef cruise from Port Douglas

  • Most Outer Reef tours depart between 8:00am and return by 4:30pm.
  • Low Isles tours offer more flexibility with morning (8:30am) and afternoon (1:00pm) departures.

Best time to visit

  • April to November offers ideal reef conditions with dry weather, calm seas, and excellent visibility.
  • December to March is a wet season but great for coral spawning events and fewer crowds.
  • Cruises depart from Crystalbrook Superyacht Marina, located close to Port Douglas town centre.
  • Paid parking is available near the marina and on nearby streets.
  • Check-in usually starts 30 minutes before the scheduled departure time.
  • Bring your booking confirmation and a valid photo ID for check-in.
  • Comfortable shaded decks and air-conditioned cabins are available on most full-day cruises—especially important for families and older travellers spending several hours in the sun.
  • Freshwater showers and private change rooms are available on larger vessels and reef pontoons, allowing you to freshen up before the return journey.
  • Reef pontoons offer a stable base for all-day snorkelling and include extra facilities such as underwater observatories, sun loungers, and kids’ swimming areas.
  • Dry storage lockers are not always available, so pack light and waterproof anything valuable.
  • A few cruises give wheelchair-accessible boarding and bathroom facilities, but snorkeling platforms often involve stairs or ladders.
  • If you’re traveling with mobility aids, ask if the boat has flat-level access, wide aisles, or crew support for boarding and disembarking.
  • Low Isles tours tend to have easier boarding and calmer waters, making them more suitable for seniors and those with limited mobility.
  • Some reef pontoons include non-slip floors, rails, and assisted snorkel entry points, so check inclusions carefully before booking.
  • Wearing a long-sleeved rashie gives better sun protection than constantly reapplying sunscreen.
  • If you’re prone to seasickness, sit outside at the back of the boat and bring ginger chews or wristbands.
  • Families with kids should choose Low Isles or pontoon-based tours for calm water and easier snorkel access.
  • If you wear prescription glasses, ask in advance about prescription mask availability or bring your own.
  • Most boats are barefoot-friendly—wear flip-flops or reef shoes for easy on-and-off during the tour.

Frequently asked questions about Port Douglas

How far is the Great Barrier Reef from Port Douglas?

The Outer Reef is around 70km offshore and takes 90 minutes by fast catamaran. The Low Isles are much closer—just 15km away—and take about 30 minutes by boat.

Can I join if I can't swim?

Absolutely. Many tours include glass-bottom boat rides, semi-submersible tours, and even underwater viewing platforms. Pontoons also offer assisted snorkeling for beginners with floatation aids and guides.

Do I need to bring my own snorkeling gear?

No, all snorkeling gear—including fins, masks, and snorkels—is provided and sanitised between uses. However, if you wear prescription lenses or prefer a personal fit, you can bring your own.

When is stinger (jellyfish) season, and should I be concerned?

Stinger season runs from November to May, and stinger suits are mandatory during this time for your safety. They’re included in your ticket price and actually help with sun protection too.

Are there age limits for snorkeling or diving?

Snorkeling is suitable for most ages, though children usually need to be over 4 years old. Introductory scuba diving is generally available for ages 12+ with no prior experience, while certified diving has fewer restrictions.

Can I dive without a certification?

Yes! Most Outer Reef tours offer introductory dives with full instruction and supervision. You’ll be guided by a dive master in shallow water after a safety briefing—no certification needed.

Is the reef still worth visiting? Is it damaged?

Yes, it's absolutely worth visiting. While some parts of the reef have experienced bleaching, many sites off Port Douglas (especially Agincourt Reef) are thriving. Operators choose sites daily based on the best conditions for visibility and marine life.

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