The Sisters is a shallow reef and cavern site located in Rockingham, Australia. With depths ranging from 2 to 8 metres and an average of 6 metres, it is suitable for beginners. The site features a mix of hard and soft corals and sponges. Divers and snorkellers should be aware of moderate to strong currents within the Shoalwater Islands Marine Park and plan dives around the tidal cycle. Access is by boat only, and users must remain vigilant regarding boat traffic. Species recorded around this area include giant cuttlefish, weedy seadragons, seahorses, nudibranchs, rays, and various wrasse species. Parking is available at the boat launch area.

The Saxon Ranger is an artificial reef located 1000 metres offshore from Rockingham. This wreck sits at depths between 18 and 20 metres, with an average depth of 14 metres. Access is by boat only. Divers should be prepared for mild currents and low visibility, typically ranging from 1 to 5 metres. Due to these conditions, the site is suited for intermediate divers with good buoyancy control. A torch is recommended for exploring the structure. When diving, be aware of stonefish camouflaged on the wreck surfaces. Move slowly and deliberately, and shuffle your feet if touching the bottom to avoid contact with these fish.

Penguin Island in Rockingham offers shallow diving and snorkelling across a mix of reef and seagrass habitats. With depths ranging from 2 to 5 metres and an average of 3 metres, the site is suitable for beginners. Visibility typically spans 5 to 10 metres. Access is via the shore, with dives lasting approximately 50 minutes. While currents are generally mild, divers should remain cautious of surge and potential rip currents near the island edges. Water temperatures fluctuate between 18C and 22C, making a wetsuit advisable. The island is closed to the public on days forecast to reach 35C or higher to protect local wildlife.

Seal Island in Rockingham is a shallow site featuring a mix of reef and seagrass habitats. With depths ranging from 3 to 8 metres and an average of 5 metres, the site is suitable for beginners. Access is by boat only, with the island located 900 metres from the mainland. Visibility typically fluctuates between 10 and 15 metres. Divers and snorkellers should be aware of mild currents, which are best managed by timing entries with the change of tide. The area experiences significant boat traffic, requiring caution during ascents. Water temperatures range from 18C to 22C throughout the year.

The Rockingham Wreck Trail in Western Australia is an artificial reef and wreck site located 60 metres from the shore. Divers and snorkellers can explore structures at depths ranging from 10 to 18 metres, with an average depth of 13 metres. The site features a mild current and visibility that fluctuates between 1 and 6 metres. Entry is via the shore, where facilities including parking, toilets, and showers are available. Due to the potential for boat traffic, shore breaks, and entanglement risks within the wrecks, divers should exercise caution. The site is suitable for beginners and supports night diving, with typical dive times lasting approximately 60 minutes.

The Orizaba is a wreck site located 500 metres offshore in Rockingham, Australia. Resting in depths between 3 and 11 metres, the site is suitable for beginner divers. Divers should be prepared for moderate currents and visibility ranging from 3 to 15 metres. The wreck structure features sharp coral, and surge can be present, particularly in the shallower sections. Access is by boat only, and divers should confirm parking availability at their chosen launch point. With an average depth of 8 metres, the site allows for extended dive times, typically around 50 minutes.

Point Peron in Rockingham offers a shallow shore-entry dive across a limestone reef, seagrass, and kelp forest. Depths range from 3 to 7 metres, making it suitable for beginners. Divers may encounter Weedy Seadragons, Chromodoris nudibranchs, Star Octopus, and various rays. The site features sharp, crumbly limestone structures and requires caution regarding sea urchins and boat traffic. Visibility typically fluctuates between 5 and 15 metres. Facilities including parking, toilets, and showers are available nearby. Divers should use a dive flag to remain visible to local boat traffic, particularly near the entry and exit points.

Grain Terminal in Rockingham is an artificial reef site located within an active industrial shipping terminal. The site features industrial debris and structural elements at depths ranging from 4 to 8 metres, with an average depth of 6 metres. Due to its location in a working port, the site experiences moderate to strong currents driven by tidal flows and heavy boat traffic. Visibility is limited, typically between 2 and 5 metres. Access is restricted as this is an active industrial port, and diving is subject to extreme hazards. Divers should exercise caution and consult local operators regarding current conditions and site access before planning any activity.