Cottesloe is a shore-accessible reef and artificial reef site in Western Australia, suitable for beginners. Divers typically explore depths between 1 and 12 metres, with an average of 7 metres. The northern side of the groyne offers protected, calm conditions, though rip currents remain a hazard along the wider coastline. Visibility ranges from 5 to 15 metres. Marine life includes common sightings of wrasses, goatfish, tailor, bream, and star octopus. Divers may also encounter pygmy pipehorse, nudibranchs, eagle rays, cowfish, barracuda, western king wrasse, western rock lobster, conger eels, and stingrays. Morning dives are recommended to avoid afternoon sea breezes, choppy water, and increased boat traffic.

Elizabeth Reef in Cottesloe offers a diverse underwater environment featuring both reef structures and caves. Reaching depths of up to 20 metres, the site is suitable for beginners, though boat access is required. Divers can encounter various species including wrasses, cat sharks, and the uncommon weedy seadragon or pygmy pipehorse. Other residents include the star octopus, conger eel, and occasional giant cuttlefish. While currents are generally mild, they can strengthen, and divers should remain vigilant for sharks. Visibility fluctuates based on swell and seasonal conditions. Always monitor your buddy closely, particularly when navigating the cave sections where currents may shift unexpectedly.

North Cottesloe Reef is a shallow, accessible site located just off the beach in Cottesloe, Australia. The reef structure sits at depths between 1 and 4 metres, with an average depth of 2 metres, making it suitable for beginners. Divers and snorkellers can expect mild currents and visibility ranging from 5 to 15 metres. Shore entry requires caution due to potential surf and shore breaks. Facilities at the site include parking, toilets, showers, changing rooms, and a nearby cafe. Typical dives last approximately 40 minutes. Visitors should be aware of hazards including jellyfish, sharks, strong currents, and surf, and are advised to shuffle their feet when entering to avoid stingrays.

The Cables in Cottesloe, Australia, is a diverse marine site featuring a combination of natural reef, artificial structures, and seagrass beds. Divers can explore depths ranging from 8 to 28 metres. The site is exposed and subject to swell and surge, making it best suited for intermediate divers on calm days with light winds. Visibility typically ranges between 3 and 15 metres. Access is by boat, and divers should remain aware of potential hazards including boat traffic, surge, and entanglement risks associated with the old cables. Water temperatures fluctuate between 19C and 23C throughout the year.

The Coombe is an estuarine shore dive located 275 metres from the shore in the Swan River. This site features a mix of reef, wreck, and muck environments with depths ranging from 9 to 22 metres, averaging 13 metres. Divers must manage moderate to strong currents and variable visibility between 1 and 7 metres. The silty bottom is easily disturbed, which can reduce visibility significantly. Due to active boat traffic and navigation lines between wrecks, a dive flag and surface marker buoy are essential. This site is suitable for intermediate divers who can maintain solid buoyancy control. Parking is available at the site.

Rocky Bay in Cottesloe is a shallow shore dive suitable for beginners, offering a combination of reef and cave environments. Divers can explore depths ranging from 2 to 12 metres, with an average depth of 8 metres. The site is located 100 metres from the shore and features mild currents, though a slight drift can occur in the channel. Visibility is variable, typically between 4 and 15 metres. Due to the presence of boat traffic, the use of a dive flag is essential. Facilities at the site include parking and toilets. Divers should remain cautious of surge and potential boat activity in the area.

Scout Hall is a shallow shore dive in Cottesloe, Western Australia, offering depths between 0 and 10 metres. This site is situated on a river bend and bottleneck, resulting in mild but noticeable tidal currents. Visibility typically ranges from 1 to 6 metres, and the silty bottom requires careful buoyancy control to prevent sediment disturbance. Due to the proximity of a yacht club and moorings, boat traffic is a constant hazard; divers must use a dive flag at all times. The site is suitable for beginners and supports night diving, with parking available for easy access.

The Swan River in Cottesloe provides an urban diving experience featuring wrecks, walls, and muck diving environments. Divers can access the site from the shore, with depths ranging from 0 to 25 metres and an average of 8 metres. Tidal flow creates moderate currents, which can become strong during full and new moons. Visibility is variable, ranging from 0 to 10 metres, and is influenced by rainfall and tides. The river is a working waterway with significant boat traffic, making a dive flag essential. Hazards include potential entanglement, sharp edges on wrecks, and bull sharks. Parking is available at entry points, and night diving is permitted.