Wilson Reef - Great Barrier Reef
Alligator Reef, just off Islamorada, is one of our favourites in the Upper Keys. It’s got that classic spur-and-groove formation, really defined, making for some interesting swim-throughs and overhangs. We often find ourselves just drifting along the deeper sections, watching schools of snapper and grunt huddle under the ledges, or spotting hogfish digging in the sand. Keep an eye out for the smaller stuff too, the Notchtongue Gobies are always a treat if you take the time to look closely at the coral heads. The visibility here is usually pretty solid, often 20 metres plus, especially on an incoming tide. We like hitting it early in the morning before the day boats crowd the mooring balls, that's when you sometimes get lucky with a passing silky shark on the deeper edges. It’s a good spot for intermediate divers; the currents can pick up, but nothing too wild. Just keep an eye on your dive guide and enjoy the drift.
- Location
- Great Barrier Reef, Australia, Australasia
- Coordinates
- -13.950000, 144.400000
- Type
- reef
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 Wilson Reef
- 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 Wilson Reef
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