

Nunn's Beach offers beginner divers a relaxed shore entry into one of Portland's most accessible reef systems. You'll walk straight off the beach into shallow waters ranging from 3 to 10 metres, making this an ideal site for building confidence or trying out new equipment. The variable currents here are generally mild, though it pays to check conditions before entering. The real draw is the marine life diversity packed into such a compact area. Weedy seadragons drift through the kelp, while wobbegong sharks rest camouflaged on the reef floor. You'll spot Shaw's cowfish investigating crevices alongside fiddler rays gliding over the sand. Keep your eyes open for angel sharks partially buried in the sediment, and don't miss the colourful nudibranchs decorating the reef. Crayfish and abalone tuck into rocky overhangs, whilst stingrays cruise the sandy patches. Visibility varies from zero to 20 metres depending on weather and swell, so patience sometimes rewards you with crystal-clear conditions. The site is diveable year-round, with full facilities including parking, toilets, showers and changing rooms. Watch for boat traffic near the entry point, and be mindful of fishing lines and nets that occasionally create entanglement hazards around the reef edges.
-38.34190, 141.60850
The site is accessible year-round, but calmer mornings tend to bring better visibility before any wind chop builds up. Parking, toilets, showers, and changing rooms are all on site, so there is no need to rush your kit up.
Access is from Nunn's Beach, which is north of the Portland Harbour. There is a car park and a boardwalk leading to the beach for easy entry.
The area is open to boat traffic, so a dive flag is recommended. The adjacent breakwater is popular for fishing, creating a risk of entanglement in active or discarded fishing lines.
Depth
3-10m
Visibility
4-20m
Skill Level
Beginner
Entry
Shore
Current
Mild
Typical Dive
94 min
Best Time
Year-round
Nunn's Beach in Portland, Victoria is renowned for its rare weedy seadragons, along with Shaw's cowfish, angel sharks, and fiddler rays. Divers regularly encounter wobbegong sharks resting on the reef, plus abundant nudibranchs, crayfish, and abalone amongst the kelp-covered rocky terrain. The site's shallow depth makes it excellent for prolonged observation of these unique southern Australian species.
Nunn's Beach is an ideal beginner dive site with depths ranging from only 3 to 10 metres and easy shore access. The shallow, protected conditions allow newly certified divers to build confidence whilst observing exceptional marine life including weedy seadragons. An Open Water certification is required, and the calm environment makes it perfect for practising buoyancy control.
Nunn's Beach offers straightforward shore access with excellent facilities including parking, toilets, showers, and changing rooms. Divers enter directly from the beach, with no boat required, making it a convenient and accessible dive site. The shore entry allows you to take your time gearing up and entering the water at your own pace.
The optimal months for diving Nunn's Beach are January through August, covering summer through winter in Victoria. This extended season allows divers to experience the site across most of the year, with visibility ranging from minimal to 20 metres depending on conditions. The cooler months often provide clearer water for observing the resident weedy seadragons.
An Open Water diving certification is required to dive Nunn's Beach in Portland, Victoria. The site's shallow depth of 3 to 10 metres and beginner-friendly conditions make it suitable for newly certified divers. No advanced certifications are necessary to enjoy this accessible shore dive.
The primary hazards at Nunn's Beach include boat traffic and potential entanglement in kelp or fishing line. Divers should deploy a surface marker buoy and stay aware of boats in the area, particularly during summer months. The kelp forests that shelter the marine life can also present entanglement risks, so proper buoyancy control is essential.
There is no entry fee to dive Nunn's Beach in Portland, Victoria. The site provides free access along with complimentary facilities including parking, toilets, showers, and changing rooms. This makes it an economical choice for divers wanting to experience Victoria's unique temperate marine life.
Nunn's Beach offers shallow diving from 3 metres to a maximum depth of 10 metres. These gentle depths make it perfect for beginner divers and allow for extended bottom times to observe the site's famous weedy seadragons and other marine life. The shallow profile also makes it suitable for snorkelling when conditions permit.
Nunn's Beach in Portland has depths ranging from 3 metres to 10 metres.
A typical dive at Nunn's Beach in Portland lasts approximately 94 minutes. Actual dive time depends on depth, air consumption, and conditions.