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.

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.

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.

Geordie Bay on Rottnest Island provides an accessible shore entry from a sandy beach, suitable for beginners. The site features a transition from seagrass beds to reef structures, with small cave and cavern formations. Depths range from 0 to 16 metres, and the area is generally sheltered with mild currents. Snorkelers should remain vigilant for boat traffic, as the bay is a popular anchorage, and be aware of jellyfish in the shallows. Facilities including toilets and a cafe are located near the beach. Water temperatures are influenced by the Leeuwin Current, ranging between 19C and 23C throughout the year.

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 3 Wrecks at Rottnest Island, Australia, features the remains of the Macedon and Denton Holmes vessels resting in shallow depths of 5 to 8 metres. This site is suitable for beginners, offering a comfortable environment with mild currents. The wrecks have integrated into the surrounding reef structure, creating a complex topography. Visibility varies between 10 and 30 metres, allowing for clear views of the wreckage. Access is by boat only, located 500 metres from shore. Divers should be aware of potential surge near the structures and maintain caution regarding boat traffic at the surface. Always deploy a surface marker buoy during ascent.

Kingston Reefs, located off Rottnest Island, offers a shallow reef environment suitable for beginner divers. The site features depths ranging from 6 to 12 metres, with an average depth of 10 metres. Divers can expect mild currents and visibility typically between 15 and 30 metres. Access to this site is by boat only. Due to the presence of boat traffic in the area, divers should remain close to their vessel and ensure their dive flag is visible at all times. Typical dive times at this location are approximately 45 minutes.

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.