Victoria · 58 sites
The Mornington Peninsula's piers are among the best macro dives in the world. Blairgowrie, Rye, Portsea and Flinders piers have weedy seadragons, giant cuttlefish, spider crab aggregations in May and June, pyjama squid, frogfish and seahorses in 4–8 m of water, and are dived by night as much as by day. The back beaches (Sorrento, Portsea, Cape Schanck) have caves, ledges and bull rays on the rare flat days.
Conditions outlook · Late September – October 2026
Written 27 September 2026The bay-side piers (Blairgowrie, Portsea, Rye) are diveable year-round on a northerly and are the reliable option while the Heads are murky in spring. Water 12–13 °C, so a hood and gloves. Flinders Pier's seadragons are carrying eggs from October; the back beaches need a rare north-easterly.
Getting there
Ninety minutes from Melbourne. All the piers are walk-in shore dives with parking; the back beaches need swell under 1 m.
When to go
Year-round on the piers (best after northerlies); autumn for the bay, late winter for cuttlefish, May–June for spider crabs.
Water & suit
Summer 18–21 °C · winter 10–13 °C. 7 mm wetsuit or semi-dry with hood and gloves; drysuit preferred June–October
Nearest chamber: The Alfred (Melbourne)
Most recorded marine life in Mornington Peninsula
Suggested trip
Built from the sites in this region: an easy start, the signature dives, then something deeper or further. Swap days around the weather; the site pages say which winds and swell close each one.
Build your own Mornington Peninsula plan: pick days, level and must-dive sites →Day 1 · Settle in
Start with Mornington Peninsula's easier shore dives: check your weighting, get used to the water temperature and dive the sheltered side of the coast.
Day 2 · The signature dives
A charter day on the sites people travel to Mornington Peninsula for.
Day 3 · Deeper or further
For divers with the certification and the weather: the deeper walls, pinnacles or less-visited sites of Mornington Peninsula.
Operators recorded as running sites in this region. Each profile lists the specific sites it goes to.
Rye · Melbourne & Port Phillip Bay · VIC
A Victorian equipment and service business with an extensive retail presence, located to serve both Melbourne and Mornington Peninsula divers.
scubadoctor.com.au · (03) 5985 3322
Frankston · Melbourne & Port Phillip Bay · VIC
A Victorian business associated with technical training and gas support alongside recreational courses.
diveline.com.au · (03) 9783 7166
Mordialloc · Melbourne & Port Phillip Bay · VIC
A Victorian operation associated with technical diving training. Exact agency, course levels and gas support require verification.
aquability.com.au · (03) 9587 1811
East Geelong · Melbourne & Port Phillip Bay · VIC
A Victorian business associated with recreational and technical training alongside equipment and gas services.
baycityscuba.com · (03) 5248 1488
Burwood · Melbourne & Port Phillip Bay · VIC
A Melbourne business providing training and equipment support for local divers.
scubaculture.com.au · (03) 9808 0033
Bentleigh East · Melbourne & Port Phillip Bay · VIC
A Victorian operation associated with recreational and technical training and access to Port Phillip diving.
oceandivers.com.au · (03) 9579 2600
Rye · Melbourne & Port Phillip Bay · VIC
A Melbourne training business offering recreational courses with technical pathways.
academyofscuba.com.au · (03) 9889 9952
Cheltenham · Melbourne & Port Phillip Bay · VIC
An equipment retailer with a spearfishing and freediving emphasis. Primarily retail rather than a training centre.
adreno.com.au/pages/contact-us-melbourne · (03) 9584 7228
Campbellfield · Melbourne & Port Phillip Bay · VIC
A Victorian training operation listed among those associated with technical diving. Capability requires verification.
allaboutscuba.com.au · (03) 9939 4913
Rowville · Melbourne & Port Phillip Bay · VIC
A Melbourne operation providing recreational training and local diving support.
aquaticadventures.com.au · (03) 9755 5688
Hallam · Melbourne & Port Phillip Bay · VIC
A Victorian equipment business listed among operations relevant to technical diving equipment supply.
divegearaustralia.com.au · (03) 9702 3694
Capel Sound · Melbourne & Port Phillip Bay · VIC
A Victorian business listed among operations associated with technical diving services.
extremewatersportshop.com · (03) 5982 3432
Click a pin for the site.
58 pinned sites. Pins marked approximate on their pages show the general area only; not for navigation.
58 sites in Mornington Peninsula · click a column to sort
| Back Beach Cray Reef | Reef | Max 20 m | Advanced Open Water | Boat | Rare |
| Balnarring Reef | Reef | Max 8 m | Open Water | Shore | Rare |
| Beacon Reef, Daveys Bay | Reef | Max 5 m | Snorkel/Any | Shore | Rare |
| Birdrock Beach, Mount Martha | Reef | Max 6 m | Open Water | Shore | Rare |
| Blairgowrie Pier | Jetty/Pier | Max 7 m | Open Water | Shore | Daily |
| Bridgewater Bay, Blairgowrie | Reef | Max 8 m | Advanced Open Water | Shore | Rare |
| Cape Schanck Cray Reef | Reef | Max 20 m | Advanced Open Water | Boat | Rare |
| Cape Schanck West (Pulpit Rock) | Reef | Max 7 m | Advanced Open Water | Shore | Rare |
| Coral Cove, Mornington | Shore/Rock Platform | Max 8 m | Open Water | Shore | Rare |
| Crawfish Rock | Pinnacle/Bommie | Max 32 m | Deep/Advanced + experience | Boat | Rare |
| Diamond Bay, Sorrento | Reef | Max 10 m | Advanced Open Water | Shore | Rare |
| Dromana Pier | Jetty/Pier | Max 5 m | Open Water | Shore | Weekly |
| Dromana Shellfish Reef | Artificial Reef | Max 9 m | Open Water | Boat | Rare |
| Fingal Beach, Cape Schanck | Reef | Max 10 m | Advanced Open Water | Shore | Rare |
| Fishermans Beach and Point Linley Reef | Reef | Max 10 m | Open Water | Shore or Boat | Occasional |
| Flinders Cray Reef | Reef | Max 20 m | Advanced Open Water | Boat | Rare |
| Flinders Ocean Beach (Flinders Back Beach) | Reef | Max 8 m | Advanced Open Water | Shore | Rare |
| Flinders Pier | Jetty/Pier | Max 6 m | Open Water | Shore | Daily |
| Fossil Beach, Mornington | Shore/Rock Platform | Max 8 m | Open Water | Shore | Rare |
| Fosters Beach, Mornington | Shore/Rock Platform | Max 8 m | Open Water | Shore | Rare |
| Frankston Pier | Jetty/Pier | Max 6 m | Open Water | Shore | Occasional |
| Frankston Reef, Olivers Hill | Reef | Max 6 m | Open Water | Shore | Rare |
| Geoffs Scallop Hole | Muck/Sand | Max 17 m | Open Water | Boat | Occasional |
| Hastings Pier | Jetty/Pier | Max 5 m | Open Water | Shore | Rare |
| JL's Scallop Beds | Muck/Sand | Max 17 m | Open Water | Boat | Occasional |
| Jubilee Point, Sorrento | Reef | Max 10 m | Advanced Open Water | Shore or Boat | Rare |
| Koonya Ocean Beach | Reef | Max 5 m | Advanced Open Water | Shore | Rare |
| London Bridge, Portsea | Shore/Rock Platform | Max 7 m | Advanced Open Water | Shore | Rare |
| Marina Cove, Mornington | Shore/Rock Platform | Max 8 m | Open Water | Shore | Rare |
| Mornington Pier | Jetty/Pier | Max 12 m | Open Water | Shore | Daily |
| Mount Martha, Burdoo Way | Shore/Rock Platform | Max 5 m | Open Water | Shore | Rare |
| Mount Martha, Deakin Drive | Shore/Rock Platform | Max 5 m | Open Water | Shore | Rare |
| Mount Martha, Hearn Road | Shore/Rock Platform | Max 5 m | Open Water | Shore | Rare |
| Mount Martha, Ian Road | Shore/Rock Platform | Max 5 m | Open Water | Shore | Rare |
| Mount Martha, Stanley Crescent | Shore/Rock Platform | Max 5 m | Open Water | Shore | Rare |
| Mushroom Reef Marine Sanctuary | Shore/Rock Platform | Max 12 m | Open Water | Shore | Occasional |
| Number Sixteen Beach, Rye | Reef | Max 5 m | Advanced Open Water | Shore | Rare |
| Pearses Beach, Blairgowrie | Reef | Max 10 m | Advanced Open Water | Shore | Rare |
| Pelican Point Reef, Daveys Bay | Reef | Max 5 m | Snorkel/Any | Shore | Rare |
| Point Franklin Reef, Portsea | Reef | Max 15 m | Open Water | Shore | Occasional |
| Point Leo | Reef | Max 8 m | Open Water | Shore | Rare |
| Portsea Pier | Jetty/Pier | Max 7 m | Open Water | Shore | Daily |
| Portsea Pier East Reef | Reef | Max 11 m | Open Water | Shore | Occasional |
| Ranelagh Beach, Mount Eliza | Shore/Rock Platform | Max 6 m | Open Water | Shore | Rare |
| Rosebud Pier | Jetty/Pier | Max 8 m | Open Water | Shore | Occasional |
| Rosebud Reef | Reef | Max 10 m | Open Water | Boat | Rare |
| Royal Beach, Mornington | Shore/Rock Platform | Max 10 m | Open Water | Shore | Rare |
| Rye Pier | Jetty/Pier | Max 7 m | Open Water | Shore | Daily |
| Rye Scallop Beds | Muck/Sand | Max 17 m | Open Water | Boat | Occasional |
| Sorrento Back Beach | Shore/Rock Platform | Max 20 m | Advanced Open Water | Shore | Rare |
| Sorrento Boat Moorings | Muck/Sand | Max 15 m | Open Water | Shore | Rare |
| Sorrento Pier | Jetty/Pier | Max 7 m | Open Water | Shore | Weekly |
| South Channel Fort | Island | Max 12 m | Open Water | Boat | Weekly |
| Spray Point Caverns, Blairgowrie | Cave/Cavern | Max 15 m | Advanced Open Water | Shore | Rare |
| St Pauls Rock, Sorrento | Shore/Rock Platform | Max 6 m | Advanced Open Water | Shore | Rare |
| Stony Point Pier | Jetty/Pier | Max 9 m | Advanced Open Water | Shore | Rare |
| Tankerton Jetty, French Island | Jetty/Pier | Max 8 m | Open Water | Shore | Rare |
| Toms Reef | Reef | Max 24 m | Advanced Open Water | Boat | Occasional |
Ninety minutes from Melbourne. All the piers are walk-in shore dives with parking; the back beaches need swell under 1 m.
Year-round on the piers (best after northerlies); autumn for the bay, late winter for cuttlefish, May–June for spider crabs.
58 documented sites and 35 that can be dived independently from the shore. The deepest reaches 32 m.
Yes, 32 sites are rated beginner. Look for the green Beginner tag in the list below, and check the weather notes on each page before diving.
Typically 18–21 °C in summer and 10–13 °C in winter. Most divers wear 7 mm wetsuit or semi-dry with hood and gloves; drysuit preferred June–October.
The Scuba Doctor, Diveline Scuba Centre, Aquability, Bay City Scuba, Scuba Culture, Ocean Divers and others are recorded as running sites in Mornington Peninsula. Each site page lists the operators known to go there.
The Alfred (Melbourne). In an emergency call 000, then DAN Asia-Pacific on 1800 088 200.