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.

Bicton Baths is a sheltered shore entry site located on the Swan River, offering a shallow muck diving experience suitable for beginners. The topography consists of a sandy and silty bottom ranging from 2 to 6 metres in depth. Divers and snorkellers should exercise caution regarding boat traffic, as this is a busy area; the use of a dive flag is required. Visibility typically ranges between 5 and 10 metres, though it can be reduced by silt or spring tides. Water temperatures fluctuate between 19C and 23C throughout the year, influenced by the estuarine environment and the presence of a salt wedge.

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.

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.

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.

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.

North Leighton and South Cottesloe provide a shallow, accessible reef and seagrass environment along the Perth metropolitan coastline. Suitable for beginners, the site features depths ranging from 1 to 12 metres with an average of 7 metres. Divers and snorkellers access the water directly from the shore. Conditions are variable, with visibility ranging from 5 to 30 metres and mild currents. Hazards include surf, surge, and rip currents, requiring careful entry and exit. Facilities at the site include parking, toilets, showers, and a cafe. The site is also suitable for night diving, with typical dives lasting around 40 minutes.

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.