

Nepean Bay is a reef dive suited to beginners, with easy shallow waters reaching no deeper than 7 metres and visibility of 5 to 10 metres. The site is best visited between November and March when conditions are most favourable. Port Jackson sharks are a regular highlight here, often resting on or near the reef, and a variety of fish species move through the area. Bear in mind that currents can run strong at times, so keep an eye on conditions before you get in. Entry is by boat, and boat traffic is an ongoing hazard to stay aware of throughout your dive.
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Time your dive around slack water to avoid the stronger currents, which can catch beginners off guard despite the shallow depth. Check with local operators for up-to-date conditions before heading out, as boat traffic in the bay means surface awareness matters as much as what is happening below.
The site can only be accessed by boat, as shore diving is prohibited at Point Nepean.
The site is located within Port Phillip Bay, which can have significant boat traffic. Diving should be planned according to tidal flows.
Depth
1-7m
Visibility
5-10m
Skill Level
Beginner
Entry
Boat
Boat required
Water Temp
12-21°C
Current
Moderate
Best Time
Jan, Feb, Mar, Nov, Dec
Nepean Bay offers shallow diving depths ranging from 1 metre to 7 metres, making it an accessible site for beginner divers. Located near Melbourne, Victoria, the shallow profile allows for extended bottom times and comfortable exploration. The maximum depth of 7 metres keeps divers well within recreational limits.
An Open Water certification is required to dive Nepean Bay in Victoria. The site's shallow depths of 1 to 7 metres and beginner-friendly conditions make it suitable for newly certified divers. The moderate currents present do require basic competency in navigation and buoyancy control.
Port Jackson sharks are regularly encountered at Nepean Bay near Melbourne, particularly during the summer months from November to March. These docile bottom-dwelling sharks are often found resting on the sandy seabed at depths between 1 and 7 metres. Divers can also observe a variety of other fish species throughout the site.
Nepean Bay requires boat access as there is no shore entry available at this Victoria dive site. Divers must arrange their own vessel or charter service from Melbourne to reach the site. No facilities are present at the location, so all equipment and supplies must be brought on board.
The best diving conditions at Nepean Bay occur from November through March during the Australian summer months. Water temperatures during this period range from 18 to 21 degrees Celsius, providing the warmest and most comfortable diving. Visibility typically ranges from 5 to 10 metres throughout the season.
Boat traffic and strong currents are the primary hazards at Nepean Bay near Melbourne. Divers must display surface marker buoys and maintain awareness of vessel movements when ascending. The moderate to strong currents require proper planning and the ability to manage drift conditions.
Nepean Bay is classified as a beginner-level dive site with shallow depths from 1 to 7 metres. The site is appropriate for Open Water certified divers who have basic current diving skills. However, beginners should be aware of moderate currents and boat traffic hazards when planning their dive.
A 7mm wetsuit or semi-dry is recommended for diving at Nepean Bay in Melbourne. Water temperatures range from 12°C to 21°C.
Nepean Bay in Melbourne has depths ranging from 1 metres to 7 metres.