Halfway Wall - Great Barrier Reef
Halfway Wall offers a proper vertical drop, which we always appreciate on the Great Barrier Reef. Too often you’re finning along gentle slopes; here, the reef plunges straight down, giving you that proper wall diving sensation. We love dropping in and letting the wall guide us. Look for big schools of blackfin chromis darting in and out of the staghorn corals, and keep an eye out for the big, sleepy rock cod tucked into ledges. Visibility here can often be excellent, pushing past 20 meters, which lets you appreciate the scale of the wall as it disappears into the blue. We've often spotted parrotfish, especially the filament-finned variety, crunching away at the coral. Our best dives here have been in the mornings, before any afternoon chop picks up. It’s a site that suits divers who enjoy a drift, letting the current do the work while they scan the wall for macro life like Ernie’s sueviota, or look out into the blue for something larger.
- Location
- Great Barrier Reef, Australia, Australasia
- Coordinates
- -13.848716, 146.563870
- Type
- wall
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
Nearby Dive Sites in Great Barrier Reef
- Admiralty Anchorage (reef)
- Agincourt Reef - 5-25m (reef)
- Agincourt Reef No. 1 - Trigger Fish City (reef)
- Agincourt Reef No. 4 - The Point - 5-25m (reef)
- Agincourt Reefs (reef)
- Agincourt Reefs (reef)
- Alexandra Reefs (reef)
- Atkinson Reef (reef)
- Aylen Patch (reef)
- Baines Patches (reef)
- Baines Patches (reef)
- Barracuda Pass (drift)
- Bashful Bommie (reef)
- Bashful Bommie (reef)
- Batt Reef (reef)
Nearest Dive Centres to Halfway Wall
- ABC Dive & Snorkel - ["PADI"]
- Blue-Cruise Pty.Ltd
- Coral Princess Cruises P/L - ["PADI"]
- Dive Centre
- Divers Den - PADI
- Horseshoe
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 Halfway Wall
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