The FV Lena is a sunken fishing vessel resting at a depth of 17 metres, serving as an artificial reef off the coast of Busselton. This site is accessible by boat and suitable for beginners, featuring mild currents and visibility ranging from 5 to 15 metres. The structure is colonised by sponges and corals, providing a habitat for diverse reef fish and invertebrates. Divers should exercise caution regarding entanglement risks within the wreck structure and be mindful of sharp coral. When navigating sandy areas, shuffle your feet to avoid stonefish. The site offers a typical dive duration of 45 minutes.

Four Mile Reef is a boat-access dive site located 7408 metres off the coast of Busselton, Australia. The reef sits at depths between 15 and 18 metres and is suitable for beginner divers due to the mild currents. As visibility can vary considerably, it is recommended to check conditions and book through a local dive shop before heading out. Guided tours are available to assist with navigation and to help identify the best areas of the reef on the day. The site offers a straightforward diving experience in water temperatures ranging from 17 to 21 degrees Celsius.

Busselton Jetty is the longest timber-piled jetty in the Southern Hemisphere, extending 1.7 kilometres into Geographe Bay. The wooden pylons function as an artificial reef, creating a sheltered environment suitable for beginners. Divers and snorkellers can access the site from the shore or by boat, with depths ranging from the surface to 10 metres. Conditions are generally mild, though visibility fluctuates between 2 and 25 metres. The site is accessible year-round, with the best conditions occurring from December to June. Divers should remain aware of boat traffic, seasonal jellyfish, and sharp coral growth on the pylons. Facilities including equipment rental, air fills, and guided tours are available nearby.

The HMAS Swan is a decommissioned Royal Australian Navy destroyer resting upright on the sandy seabed near Busselton. The wreck sits at a maximum depth of 31 metres, with the superstructure rising to 5 metres. Access is by boat only. Conditions are generally manageable with mild currents and visibility ranging from 10 to 30 metres. The site is suitable for intermediate divers, though it presents hazards including overhead environments, entanglement risks, and sharp protrusions. Large holes cut into the hull facilitate penetration for qualified divers. Species recorded around this area include various wrasses, nudibranchs, rays, and wobbegongs, while the structure itself supports soft coral growth.