Big Peninsula, also known as Secret Beach, is a boat-accessible reef and wall dive on Hook Island. The site features a wall that drops from the shallows to a maximum depth of 30 metres, with an average depth of 15 metres. Divers encounter moderate to strong currents, particularly around the island points, making this site suitable for intermediate divers. Slack tide is recommended for optimal conditions. Visibility ranges from 4 to 15 metres. Species recorded around this area include Napoleon Wrasse, Green Sea Turtle, Giant Trevally, and various wrasses. Stinger season occurs from November to May, during which a full-body lycra suit is highly recommended to mitigate jellyfish hazards.

Luncheon Bay, located on Hook Island, provides a reef and wall environment suitable for beginners. The site features depths ranging from 3 to 20 metres, with an average depth of 9 metres. Navigation is straightforward due to mild currents, which typically remain below 1 knot. Access is exclusively by boat charter. Visibility varies significantly from 3 to 30 metres depending on conditions. During stinger season, which runs from October to May, the use of a full-body stinger suit is recommended to mitigate the risk of dangerous jellyfish. Water temperatures fluctuate between 22C in winter and 29C in summer.

Mackerel Bay on Hook Island is a shallow reef site ideal for beginners. Divers and snorkellers can explore depths ranging from 1 to 8 metres, with an average depth of 5 metres. Access is via a shore entry approximately 200 metres from the beach. Conditions are generally mild, though visibility can fluctuate between 10 and 30 metres depending on tides and weather. Water temperatures range from 22C to 29C throughout the year. When entering or exiting, shuffle your feet to avoid sharp coral and rocks, and remain aware of the shore break. Always check local conditions for current and visibility updates before entering the water.

Cockatoo Point is a boat-access reef site located off Hook Island, Australia. Suitable for beginners, the site features a diverse structure of hard and soft corals, including staghorn, plate, boulder, brain, mosaic, and lunar varieties, alongside mushroom and elephant ear corals. Divers and snorkellers can explore depths ranging from 1 to 20 metres, with an average depth of 10 metres. Visibility typically fluctuates between 5 and 15 metres. Due to moderate currents and the presence of jellyfish, a full wetsuit or lycra suit is recommended for protection. Boat entry is required, and divers should monitor current strength throughout the 45-minute typical dive duration.

Mantaray Bay on Hook Island is a reef site accessible only by boat. Suitable for beginners, the site features depths ranging from 7 to 25 metres with an average of 12 metres. Divers and snorkellers encounter mild currents and visibility between 7 and 16 metres. Marine life includes very common Napoleon Wrasse and various wrasses, alongside common Giant Trevally, Elongate Clam, Common Coral Trout, and Copperband Butterflyfish. Less frequently, visitors may spot Bluefaced Angelfish, Blue-barred Parrotfish, Rock Cod, and Bluespine Unicornfish. Hazards include jellyfish and sharks. Due to active boat traffic, divers should stay near the shot line and deploy a surface marker buoy.

Wrasse Bay is a reef site located on the northern side of Hook Island, offering depths between 3 and 18 metres with an average of 10 metres. This site is suitable for beginner divers, though it requires boat access and careful planning around slack tide due to moderate currents. Visibility typically ranges from 3 to 15 metres. Water temperatures remain warm throughout the year, ranging from 22C to 29C. Divers should be aware of stinger season from October to May, during which full-body protective suits are recommended. Guided tours are available to assist with navigating the local conditions and currents.

Wonderwall at Black Island is a beginner-friendly reef dive located off Hook Island. Accessible only by boat, the site features a reef structure ranging from 3 to 14 metres in depth, with an average of 9 metres. Divers experience mild currents and visibility that fluctuates between 5 and 25 metres. The reef supports a variety of hard and soft corals, alongside resident reef fish and invertebrates. Sharks are known to inhabit the area, so maintain awareness of your surroundings during entry and throughout the dive. Arriving early in the day often provides calmer water and improved light for observing the reef structure.

Mackerel Bay on Hook Island is a reef site suitable for beginner divers, offering depths between 1 and 18 metres with an average of 12 metres. Access is by boat only. The site features mild currents, though visibility varies significantly from 2 to 30 metres. Following damage from Cyclone Debbie in 2017, the reef is currently in a state of recovery. Divers should note that the site is exposed to southerly winds and can experience surf. Species recorded around this area include Napoleon Wrasse, Green Sea Turtles, Giant Trevally, Barramundi Cod, and various species of wrasse, angelfish, and butterflyfish. Always check locally for stinger activity before entering the water.