Hinchinbrook Island National Park features shallow reef and seagrass habitats accessible by boat. Snorkeling occurs in sheltered bays at depths between 1 and 5 metres, with an average of 3 metres. Visibility ranges from 5 to 20 metres. While currents are generally mild, tidal influence can occur. The site is suitable for beginners, though visitors must remain vigilant regarding local hazards, including crocodiles and dangerous marine stingers. A full-body protective suit is strongly recommended, particularly between November and May. The area supports diverse marine life, including various reef fish and invertebrates typical of the region. Facilities at the site are limited to toilets.

Float Moorings at Pelorus Island features a reef system extending from the shallows to a depth of 18 metres. The site includes a wall and drop-off, with an average depth of 5 metres. Divers can access the site via a shore entry located 10 metres from the reef. Conditions are variable, with visibility ranging from 10 to 30 metres and currents that can fluctuate in strength. The site is suitable for beginners, though divers should remain near the moorings if currents increase. Night diving is permitted, and the typical dive duration is 40 minutes. Always check local conditions before entering, as the drop-off can funnel water movement.

Pelorus and Orpheus Islands offer a diverse underwater environment featuring reef, wall, and drift terrain. Located in the Palm Island group, the site reaches depths between 6 and 25 metres, with an average of 15 metres. The defining characteristic is the strong current flowing through the channel between the islands, which facilitates exhilarating drift dives for intermediate divers. Visibility varies between 3 and 15 metres depending on tidal conditions. Both shore and boat entries are possible, and the site supports night diving. Divers should be aware of hazards including strong currents, jellyfish, sharks, and sharp coral. Tidal tables should be consulted to plan dives around slack water.

Cardwell Bay is a boat-access reef site located off the Cardwell coast. This site is strictly for expert divers due to challenging conditions, including strong currents and variable visibility. The environment requires high situational awareness and careful buoyancy control. Water temperatures range from 23C in winter to 29C in summer. Divers must be aware of significant hazards, including the presence of estuarine crocodiles in tidal waters and dangerous stinging jellyfish, which are particularly prevalent from November to May. Local conditions fluctuate significantly, and it is essential to confirm current safety information and jellyfish activity with local authorities before planning any dive.

The Maze is a reef and drift dive site located off the Palm Islands and Hinchinbrook, Australia. Accessible only by boat, the site features a shallow depth range of 3 to 12 metres, with an average depth of 7 metres, making it suitable for beginner divers. Visibility varies significantly, reaching up to 30 metres in optimal conditions. Divers should be prepared for moderate currents. Stinger season occurs from November to May, and crocodiles are a known hazard in the wider Hinchinbrook area. Always consult your boat operator regarding current conditions and local safety risks before entering the water.

The Brook Islands feature fringing reefs offering shallow diving and snorkelling in depths ranging from 1 to 12 metres, with an average of 6 metres. This site is suitable for beginners, with generally mild currents and visibility between 5 and 15 metres. Access is exclusively by boat, located 30 kilometres from the mainland. The habitat supports a variety of reef fish and invertebrates typical of the region. Divers and snorkellers must be aware of hazards, including sharp coral, jellyfish, and the presence of crocodiles. A full-body lycra suit is recommended for protection against stingers. Vessel speed is restricted to 6 knots within 200 metres of the islands.

Cardwell Jetty is a shore entry site featuring shallow waters around the jetty pylons and a sandy bottom. This location is suitable for beginners, with parking, toilets, showers, and a cafe available nearby. Visibility is variable and currents can change, requiring caution before entry. The habitat supports various reef fish and invertebrates typical of the region. Significant hazards include the presence of estuarine crocodiles and dangerous stinging jellyfish, particularly from November to May. Due to these risks, the Queensland Parks and Wildlife Service advises against swimming in these tidal waters. Divers and snorkellers should exercise extreme caution and wear protective stinger suits.

Cardwell Spa Pools is a shallow freshwater site in Cardwell, Queensland, offering depths between 0 and 2 metres. This shore-entry location is suitable for beginners, though conditions vary significantly based on rainfall. The site features a mild current that can strengthen rapidly during the wet season as water levels rise. Visitors should exercise caution due to slippery rocks and the presence of bullrouts, a type of freshwater stonefish. The habitat supports various freshwater fish and invertebrates typical of the region. Parking is available on-site. For the best experience, visit during the cooler months between May and September when water conditions are more stable.