

Low Isles is a sheltered reef site in Queensland that works well for beginners, with depths ranging from 1 to 15 metres and visibility reaching 10 to 25 metres on good days. The mild current keeps things relaxed, giving you time to watch sea turtles moving through the coral or spot clownfish tucked into anemones. Hard and soft corals provide the backdrop, while parrotfish, angelfish, and giant clams are regular sights. Keep your eyes open for dugongs, though sightings are less predictable. Watch your buoyancy around the coral as contact is easy to make unintentionally, and check conditions for jellyfish before entering.
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May through November brings the most reliable visibility and calmer conditions, making it the window most locals aim for. Stay aware of boat traffic around the entry and exit points, particularly if you are snorkelling near the surface.
Access to Low Isles is only by boat. Numerous tour operators run daily half-day and full-day trips from the Crystalbrook Superyacht Marina in Port Douglas.
During the wet season (November to May), Irukandji and Box jellyfish are a significant hazard. Tour operators provide protective "stinger suits" during this period. Boat traffic can be present due to the site's popularity.
Depth
1-15m
Visibility
10-25m
Skill Level
Beginner
Entry
Shore & Boat
Boat required
Water Temp
24-29°C
Current
Mild
Typical Dive
150 min
Best Time
May, Jun, Jul, Aug, Sep, Oct, Nov
Low Isles in Queensland offers excellent snorkelling conditions suitable for beginners, with shallow depths from 1 to 15 metres and visibility ranging from 10 to 25 metres. The site is accessible only by boat from Cairns or Port Douglas and features protected waters with mild currents. Snorkellers can encounter sea turtles, dugongs, clownfish and giant clams amongst extensive coral gardens.
Low Isles supports diverse marine life including sea turtles, dugongs, parrotfish, angelfish, clownfish and giant clams. The coral reef features both soft and hard coral formations that provide habitat for these species. Water temperatures between 24 and 29 degrees Celsius create ideal conditions for tropical reef creatures year-round.
Low Isles offers diving depths from 1 to 15 metres, making it ideal for beginner divers and Open Water certified divers. The shallow depths combined with mild currents create comfortable conditions for those new to diving. Visibility typically ranges from 10 to 25 metres across the reef.
The best months to dive Low Isles are May through November, which corresponds to the Australian winter and spring seasons. During these months, water conditions are most stable with excellent visibility and comfortable temperatures between 24 and 29 degrees Celsius. This period also falls outside the main jellyfish season, reducing stinger risk.
A boat is required to reach Low Isles, with departures available from both Cairns and Port Douglas on the Queensland coast. The site is located offshore and cannot be accessed from the beach. Guided tours are available and the site includes toilet facilities for day visitors.
An Open Water diving certification is required to dive at Low Isles, as the site reaches depths up to 15 metres. The beginner-friendly conditions with mild currents and good visibility make it an excellent choice for newly certified divers. Snorkelling requires no certification and is available in the shallow areas.
Low Isles presents three main hazards: boat traffic in the area, sharp coral that can cause cuts, and seasonal jellyfish. Divers and snorkellers should maintain awareness of vessel movements, avoid touching coral formations, and consider wearing protective stinger suits during summer months. The mild currents and shallow depths otherwise make this a safe beginner site.
There is no entry fee to dive or snorkel at Low Isles in Queensland. However, visitors must pay for boat transport from Cairns or Port Douglas, as the site is only accessible by vessel. Tour operators offer various packages that include equipment and guided experiences.
Low Isles in Cairns and Port Douglas is well-suited for beginner divers and snorkellers. Conditions are typically calm with easy entry and shallow depths.
A 3mm wetsuit is recommended for diving at Low Isles in Cairns and Port Douglas. Water temperatures range from 24°C to 29°C.