Norman Reef Pontoon - Great Barrier Reef

Red Mercs is one of our absolute favourite sites around Goat Island, a proper New Zealand classic. The real magic here is the sheer density of fish. We've often dropped in to find ourselves completely enveloped by schools of demoiselles and swarms of snapper, so thick they almost block out the sun. It's a proper visual feast, the kind of dive where you just hang still and let the current bring the show to you. The site is essentially a series of rocky pins and ledges that drop down to about 18 metres, covered in kelp and soft corals. It's a bit exposed, so picking your day is key – we always check the swell reports carefully. When the conditions line up, though, the visibility can stretch to 15 metres, and the place just explodes with life. Keep an eye out for those big California yellowtail cruising through, and the vibrant flash of crimson cleaner fish zipping around the rocks. It’s a site that really rewards a slow, observant diver, perfect for those who love feeling part of a bustling underwater world rather than just passing through it.

Location: Great Barrier Reef, Australia, Australasia
Coordinates: -16.426100, 145.990100
Type: reef

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 Norman Reef Pontoon

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 Norman Reef Pontoon

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