Popes Eye is a partially submerged, circular stone structure located in Port Phillip Bay. Serving as an artificial reef, the site features depths ranging from 1 to 12 metres, with an average depth of 8 metres. It is accessible only by boat and is suitable for beginners. While the interior of the annulus provides protection, strong tidal currents reaching 5 to 8 knots can occur outside the structure. Divers should remain aware of boat traffic on the surface. Visibility varies from 5 to 25 metres, and water temperatures fluctuate between 13C and 19C, necessitating a full exposure suit year-round.

Chimanan's Hat is an artificial reef located 3000 metres offshore from Sorrento in the South Channel of Port Phillip Bay. This site features shallow depths ranging from 1 to 12 metres, with an average depth of 4 metres, making it suitable for beginners. Access is strictly by boat. While the area is generally calm, it is situated within a shipping channel, necessitating caution regarding boat traffic and the use of a delayed surface marker buoy. Tidal currents can occur, though they are typically mild. Water temperatures fluctuate between 13 and 19 degrees Celsius, requiring a wetsuit year-round. Divers should be aware of potential hazards including jellyfish and local marine life interactions.

The Eliza Ramsden is an artificial reef wreck located 2000 metres offshore in the South Shipping Channel near Sorrento. Resting at depths between 14 and 22 metres, the site is suited for intermediate divers due to the requirement for precise timing. The wreck is subject to strong tidal currents, necessitating dives during slack water to ensure safety. Visibility ranges from 7 to 20 metres, with the clearest conditions typically occurring during the winter months. Divers must remain vigilant regarding heavy boat traffic in this active shipping channel. Access to the site is by boat only, with local charters and guided tours available for those planning a visit.

Queenscliff Pier offers a shallow shore dive featuring a mix of reef and muck environments. Divers explore the area around the pier pylons and the adjacent seafloor at depths ranging from 2 to 5 metres. Visibility typically spans 5 to 10 metres. The site is suitable for beginners, though it requires careful planning due to moderate currents; diving at slack tide is recommended. Hazards include boat traffic, potential entanglement in discarded fishing lines from the active fishing pier, and strong currents. Facilities including parking, toilets, and air fills are available nearby. Water temperatures fluctuate between 13C and 19C throughout the year.

Quarantine Station Wall is a shore-entry drift dive located in Sorrento, Australia. The site features a vertical wall ranging from 12 to 20 metres in depth. Divers experience moderate currents that carry them along the wall, with visibility typically between 10 and 30 metres. While suitable for beginners, the site requires careful planning due to the potential for strengthening currents and significant depth. Species recorded around this area include Giant Cuttlefish, Weedy Seadragon, Pot-bellied Seahorse, Blue-ringed Octopus, Fiddler Ray, Stonefish, Chromodoris Nudibranch, Western Blue Devil, Smooth Ray, Bobtail Squid, Long-nosed Fur Seal, Port Jackson Shark, and various wrasses.

Scallop Drift Dives in Sorrento is a drift dive site characterised by strong currents within Port Phillip Bay. Divers are transported by boat to the site, which consists of sandy ground scattered with scallops. The site ranges in depth from 5 to 15 metres, with an average depth of 10 metres. Visibility typically fluctuates between 6 and 15 metres. Due to the strong currents and boat traffic, this site is suited for intermediate divers. Divers must be vigilant regarding boat traffic and current strength. Water temperatures vary by season, ranging from 13C in winter to 19C during the summer months.

Spectacular Reef in Sorrento is a wall and drop-off site located 1000 metres offshore within a major shipping channel. The topography features shallow sections at 6 to 9 metres, with the main reef dropping to depths between 15 and 33 metres. Due to strong tidal currents, this site must be dived at slack water and is suitable for advanced divers only. Visibility ranges from 3 to 20 metres. Divers should be aware of significant boat traffic and use a surface marker buoy during ascent. The reef structure is characterised by ledges and crevices that support soft corals and sponges.

The HMAS J3 is a decommissioned Royal Australian Navy submarine resting in shallow waters off Sorrento. This wreck site sits at an average depth of 6 metres, with a range of 5 to 8 metres. The hull is colonised by sponges and draped in kelp. Divers must access the site by boat and should plan dives around slack tide to manage strong currents. Visibility typically ranges from 5 to 10 metres. Species recorded around this area include Weedy Seadragons, Giant Cuttlefish, and Western Blue Devils. Note that the site is located within a prohibited military zone, and access is not allowed.