The Plateau
Protected Area
Port Phillip Heads
Why dive here
With 129+ marine species recorded in the area - including blue sharks, blue whales, dolphins, dwarf minke whales and great white sharks - The Plateau offers some of Victoria's richest cave diving. Water ranges 13-20°C, warmest January, February, March.
Forget the brochures. The Bisevo Blue Cave is one of those places you *think* you know from photos, but nothing prepares you for the actual experience. We love it because it’s a proper spectacle, a real natural marvel rather than just another pretty cave. You want to aim for mid-morning, around 10 or 11 AM, when the sun hits just right. You descend into what feels like a perfectly ordinary cavern, then you turn a corner and suddenly, the water itself is glowing. It’s an electric, ethereal blue that lights up the rock walls, transforming the space into something otherworldly. It’s not about finding rare nudibranchs here, though we've spotted dory lurking in the deeper corners. This dive is about immersion in pure, refracted light. The effect is created by sunlight bouncing off the white seabed through a narrow underwater opening, and it really is something else. Outside the main cave, the surrounding walls drop off, offering a good spot to look for brown skate or the occasional marbled electric ray resting on the sand. It’s a relatively easy dive, not too deep, making it perfect for divers who appreciate natural phenomena and want to capture some truly unique underwater photos. Just be mindful of boat traffic outside the cave, it can get busy in peak season.
Safety Notes
Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.
Cold water this month (avg 15°C). Drysuit or thick wetsuit (7mm+) recommended.
Reviews for The Plateau
Conditions
Ocean conditions, forecast and tides for The Plateau
The Plateau Ocean Conditions
Monthly averages for The Plateau, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-38.3, 144.7) (0km away)
October Averages
Sea Temperature
15°C
58°F · Range: 13.4–16.3°C
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
Plan & book
Ways to dive Victoria, from day trips to liveaboards.
Day trips & courses
via GetYourGuideGuided dives, courses and snorkel trips with instant booking.
Find dive trips in VictoriaPlaces to stay
via Booking.comHotels and dive resorts near Victoria.
Search stays in VictoriaDive insurance
Most travel insurance excludes or limits scuba. Check what you need before you go.
Dive insurance explainedPartner links: we may earn a commission if you book, at no extra cost to you. How we make money
Where to Stay near The Plateau
Prices from Booking.com. We may earn a commission at no extra cost to you.
