Parakeet Bay on Rottnest Island is a sheltered shore-accessible site featuring a diverse mix of reef, seagrass beds, and kelp forest. With depths ranging from 1 to 4 metres and an average of 2 metres, the site is well-suited for beginners. The bay is protected from prevailing winds, providing calm conditions and minimal current. Visibility can reach up to 30 metres, though it varies. Visitors should exercise caution near the limestone cliffs, which are unstable and prone to collapse. The site is best accessed in the morning to take advantage of settled conditions before afternoon winds develop.

The Basin is a sheltered reef and seagrass site located at Rottnest Island, Australia. With depths ranging from 1 to 10 metres and an average of 3 metres, it is well-suited for beginner divers and snorkellers. The site is protected from most winds, maintaining mild currents and visibility between 15 and 30 metres. Water temperatures are influenced by the Leeuwin Current, remaining warmer than the mainland coast. Shore access is straightforward, supported by on-site facilities including parking, toilets, showers, and a rinse station. Divers should remain aware of potential surface chop from afternoon sea breezes and the presence of other water users in this popular area.

Little Armstrong Bay on Rottnest Island offers a sheltered shore entry dive suitable for beginners. The site features a reef and cave topography with depths ranging from 6 to 7 metres, averaging 4 metres. Divers benefit from mild currents and visibility typically between 15 and 20 metres. Water temperatures fluctuate between 19C and 23C, necessitating appropriate thermal protection year-round. The bay is protected from waves and winds, providing a stable environment for underwater exploration. Divers should remain aware of potential boat traffic in the area. Conditions are most settled during the spring and autumn months.

Roe Reef, located 1500 metres off Rottnest Island, is a boat-accessible site featuring a mix of reef and cave topography. Divers and snorkellers can explore depths ranging from 8 to 18 metres, with visibility typically between 10 and 25 metres. The site is suitable for beginners, though conditions require careful assessment as currents can reach 2 knots and surge is common. Water temperatures fluctuate between 19C and 23C, with potential for thermoclines. Species recorded around this area include various wrasses, nudibranchs, rays, and butterflyfish. Due to the exposure to wind and swell, morning dives are recommended when conditions are calm.

Rottnest Island features a diverse underwater landscape consisting of walls, caves, reefs, drop-offs, and a wreck. Accessible only by boat, the site offers depths ranging from 2 to 26 metres with an average of 10 metres. Divers should be prepared for moderate currents and variable visibility between 3 and 30 metres. Water temperatures fluctuate between 19C and 23C, with cold currents and thermoclines possible at North Point. Hazards include boat traffic, jellyfish, surf, surge, and strong currents. The site is suitable for intermediate divers, with facilities available for air fills, equipment rental, and guided tours. Night diving is permitted, and typical dive times are approximately 50 minutes.

Transit Wreck is a shallow wreck and reef site located off Rottnest Island, Australia. Resting in depths between 3 and 7 metres, it serves as an accessible introduction to wreck diving for beginners. Divers access the site by boat, encountering mild currents that can be unpredictable; timing dives around slack water is recommended for a more relaxed experience. Visibility typically ranges from 5 to 15 metres. Divers should exercise caution around the structure, as sharp coral and potential entanglement hazards exist. Exposure protection is advised to prevent skin abrasions from reef edges. Always remain aware of gear placement and avoid reaching into gaps or cavities within the wreck structure.

North Point Reef at Rottnest Island offers a diverse underwater environment featuring reef structures, caves, and drift diving opportunities. Depths range from 8 to 30 metres, with an average of 18 metres. Divers encounter moderate currents and surge, requiring advanced buoyancy control and experience. The site is accessible only by boat. Visibility typically spans 10 to 30 metres, with water temperatures between 19C and 23C. Hazards include strong currents, surge, and sharp coral. Due to the challenging conditions and drift nature of the site, it is suited for advanced divers. Typical dive times are approximately 50 minutes.

West Kingston Reef at Rottnest Island offers a varied underwater landscape featuring reef terrain and a cave. Suitable for beginners, the site reaches depths between 8 and 18 metres with an average of 12 metres. Divers experience mild currents, though surge can be present, particularly near the reef and within the cave structure. Visibility fluctuates between 4 and 15 metres. Access is by boat, and divers should exercise caution regarding surge and swell during entry. A typical dive lasts approximately 50 minutes. If swell conditions are high, the cave may experience funnelled currents, making it advisable to avoid entry during such times.