Plate Top - Great Barrier Reef

Plate Top isn't the biggest name on the Great Barrier Reef, but we consistently find ourselves drawn back to its subtle charm. It’s not about dramatic drop-offs here. Instead, you get a sprawling, relatively shallow plateau, packed with the kind of details that reward slow diving. We love drifting over the staghorn coral patches, keeping an eye out for those flashy harlequin tuskfish – their colours really pop against the blues and greens. What makes Plate Top special for us is the sheer number of those smaller, often overlooked fish. We've spent entire dives just tracking sunburst and citron butterflyfish flitting among the coral, or trying to spot the incredibly camouflaged threespot flounder on the sand. You’ll see plenty of rivulated and bicolor parrotfish munching away, too. It’s a site that really suits divers who prefer to take their time, exploring every crevice rather than racing past big pelagics. Visibility is generally solid, and currents tend to be mild, making it a relaxed dive where you can truly focus on the reef's intricate tapestry. Keep an eye on the shallower sections just before surfacing, we’ve often spotted Lesser Frigatebirds circling overhead.

Location: Great Barrier Reef, Australia, Australasia
Coordinates: -16.427015, 145.990420
Type: reef
Maximum Depth: 5-15m

Marine Protected Area: Michaelmas and Upolu Cays

Best Time to Dive in Great Barrier Reef

The warmest water temperatures in Great Barrier Reef occur in February, averaging 29.5°C. The coolest conditions are in August at 25.0°C.

Monthly Water Temperatures

January: 29.4°C
February: 29.5°C
March: 29.2°C
April: 28.4°C
May: 26.9°C
June: 25.8°C
July: 25.1°C
August: 25.0°C
September: 25.4°C
October: 26.6°C
November: 27.7°C
December: 29.0°C

Nearest Dive Centres to Plate Top

Marine Life in Great Barrier Reef

Home to 163 recorded species including 88 reef fish, 61 hard corals, 9 seagrass & algae, 2 sharks & rays, 1 starfish, 1 sea snails & nudibranchs.

Notable Species

thalassia (Thalassia hemprichii) - Seagrass & Algae
halodule (Halodule uninervis) - Seagrass & Algae
cymodocea (Cymodocea rotundata) - Seagrass & Algae
Great hammerhead (Sphyrna mokarran) - Sharks & Rays
Bullethead Parrotfish (Chlorurus sordidus) - Reef Fish
seagrass (Halophila ovalis) - Seagrass & Algae
Cauliflower coral (Pocillopora damicornis) - Hard Corals
Lineated Butterflyfish (Chaetodon trifasciatus) - Reef Fish
Dusky Parrotfish (Scarus niger) - Reef Fish
Blackspot Surgeonfish (Acanthurus nigrofuscus) - Reef Fish
Bird wrasse (Gomphosus varius) - Reef Fish
Blue-lined Tang (Zebrasoma scopas) - Reef Fish
Telescopefish (Epibulus insidiator) - Reef Fish
Banded thicklip (Hemigymnus fasciatus) - Reef Fish
Fluorescence grass coral (Galaxea fascicularis) - Hard Corals
Blunt-head Parrotfish (Chlorurus microrhinos) - Reef Fish
Staghorn coral (Acropora hyacinthus) - Hard Corals
Chameleon Parrotfish (Scarus chameleon) - Reef Fish
Citron Butterfly (Chaetodon citrinellus) - Reef Fish
Black-back Butterflyfish (Chaetodon melannotus) - Reef Fish

Recommended Packing List for Plate Top

Based on average water temperature of 27.3°C, currents 17 cm/s.

Shorty or Rashguard - warm 27°C water needs minimal exposure protection
Mask - essential for every dive
Fins
BCD - buoyancy compensator
Regulator - your most safety-critical piece of gear
Dive Computer - tracks depth, time, and NDL
Surface Marker Buoy (SMB) - essential for boat pickups
Dive Torch - useful for crevices and colour at depth
Underwater Camera - capture your diving memories