Flat Rock - Shark Alley
Welcome to Shark Alley, a sought-after dive site in Queensland, Australia. This deeper and thrilling location is perfect for experienced divers seeking an unforgettable underwater adventure. As an aggregation zone for the endangered Grey Nurse (sand tiger) sharks, Shark Alley combines both excitement and conservation significance.
Situated further out to sea, Shark Alley offers an incredible opportunity to encounter magnificent marine creatures. Get ready to witness the majestic presence of humpback whales alongside a variety of large pelagic marine life. Be captivated by the graceful movements of grey nurse and wobbegong sharks, as well as the elegant flight of eagle rays and cownose rays. You may also encounter groupers, barracuda, and nudibranchs throughout your dive.
With a maximum depth of 28m and the reef rising to 12m on both sides of the alley, Shark Alley guarantees a fascinating underwater landscape to explore. Although this enchanting dive site is predominantly suitable for advanced divers, beginners with the appropriate training and supervision can also enjoy its wonders.
During your dive, expect a visibility of 15m, allowing you to fully immerse yourself in the vibrant underwater world. The maximum depth of Shark Alley is 23m, providing divers with a unique opportunity to explore its depths.
So, whether you are a seasoned diver or an adventurous beginner, don't miss the chance to experience the exhilaration of Shark Alley. Plan your dive today and uncover the treasures that await you in this remarkable underwater paradise.
Diving Conditions Score for Flat Rock - Shark Alley
Average conditions, be alert.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Flat Rock - Shark Alley
Depth
23m
Visibility
15m
Experience Level
Weather Conditions for Flat Rock - Shark Alley
Wave Height
0.64m
Wind Speed
14.8 m/s
Water Temp
21.6°C
Visibility
43.48km
Cloud Cover
83%
Wave Period
6.8s
Air Temperature
17.8°C
Precipitation
0 mm
Dive Score Chart for Flat Rock - Shark Alley
Best time to dive: 8:00 with score 7.789668737060041/10. Water conditions: Waves 0.58m, Wind 7.9 m/s.Best night dive time: 5:00 with score 7.5505061728395075/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Flat Rock - Shark Alley are affected by daylight hours. Sunrise occurs at 06:00 and sunset at 18:00, which impacts visibility and water temperature for scuba diving and snorkeling.
Score: 7.8/10
Waves: 0.58m (8.05s), Wind: 7.9 m/s
Score: 7.6/10
Waves: 0.6m, Wind: 6.2 m/s
Seasonal Analysis for Flat Rock - Shark Alley Alpha
Historical patterns and best seasons for diving at Flat Rock - Shark Alley
The dive score combines all factors to rate overall diving conditions throughout the year. Higher scores indicate better diving conditions.
Monthly Dive Score Analysis - Seasonal Diving Conditions
Higher values indicate better diving conditions
Seasonal DiveScore Chart
This chart displays monthly diveScore data throughout the year, showing seasonal patterns. The data is presented as a bar chart with an overlaid line graph.Dive scores range from 1 to 10, with 10 being optimal conditions.
Higher values indicate better diving conditions
Best Season for Flat Rock - Shark Alley
Summer
Summer offers the warmest water temperatures and generally favorable conditions for all levels of divers.
Best Months for Flat Rock - Shark Alley
Ideal Conditions for Flat Rock - Shark Alley
Water Temp
22.7°C / 72.9°F
June
Visibility
20.1m / 65.9ft
October
Wave Height
0.2m / 0.7ft
January
Wave Period
8.0s
January
Seasonal Insights for Flat Rock - Shark Alley
Flat Rock - Shark Alley follows southern hemisphere patterns with June being the warmest month (22.7°C) and December the coldest (18.7°C). The calmest conditions typically occur in January with average wave heights of 0.2m and wave periods of 8.0s. The most comfortable wave conditions are in January with a low wave steepness ratio, creating gentler swells. January offers the longest wave periods (8.0s), creating more comfortable and predictable conditions for boat entries and exits. Ocean currents are slowest in January (0.5m/s) and strongest in January (0.5m/s). January is usually the driest month with 0.0mm of precipitation. For beginners, the best time to visit would be during January to March, when ocean conditions are calmer with long-period waves and currents are typically weaker. Experienced divers might enjoy the challenges and potentially better visibility during the shoulder seasons, with moderate currents that can improve marine life encounters.
Last updated: 1 min. ago - Jun 22, 2026