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Blue Devil Cave

Welcome to one of the finest shore dives along the NSW south coast, offering breathtaking underwater sights. Immerse yourself in the depths of this captivating cave, which is home to at least 3 magnificent Blue Devil Fish. Take your time to marvel at the abundant marine life that embellishes this site as you venture out and back. Begin your underwater exploration at The Gutter entry point.

Discover a diverse array of species at this remarkable dive site, including Sydney Pygmy Pipehorses, Frog Fish, Nudibranchs, Cuttlefish, Weedy Sea Dragons, and more. Prepare to be amazed by the vibrant marine ecosystems that flourish here.

Don't miss out on this exceptional diving experience in Australia, located near Beaky Bay Picnic Area, Indigenous Discovery Walk, Shell Cove, Shellharbour City Council, New South Wales, 2529, Australia.

This site is suitable for divers of all levels, whether you're a beginner, advanced, or an expert. With a visibility of 9 meters and a maximum depth of 20 meters, this underwater wonderland awaits exploration. Immerse yourself in the beauty of the depths and create unforgettable memories.

Diving Conditions Score for Blue Devil Cave

5.3
Average

Average conditions, be alert.
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for Blue Devil Cave

Depth

20m

Visibility

9m

Experience Level

beginner
advanced
expert

Weather Conditions for Blue Devil Cave

Wave Height

1.08m

Wind Speed

10.8 m/s

Water Temp

19.1°C

Visibility

58.74km

Cloud Cover

0%

Wave Period

7.3s

Air Temperature

7.1°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Blue Devil Cave
Alpha

Dive Score Chart for Blue Devil Cave

Best time to dive: 13:00 with score 6.863333333333333/10. Water conditions: Waves 1.1m, Wind 7.1 m/s.Best night dive time: 23:00 with score 6.325703854875283/10.

Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.

Sunrise at Blue Devil Cave : 06:00
Sunset at Blue Devil Cave : 18:00

Optimal diving conditions at Blue Devil Cave 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.

🌞
Best Overall
13:00

Score: 6.9/10
Waves: 1.1m (7.1s), Wind: 7.1 m/s

🌙
Best Night
23:00

Score: 6.3/10
Waves: 1m, Wind: 9.1 m/s

Seasonal Analysis for Blue Devil Cave
Alpha

Historical patterns and best seasons for diving at Blue Devil Cave

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 Blue Devil Cave

Summer

Avg. Score: 10.0/10

Summer offers the warmest water temperatures and generally favorable conditions for all levels of divers.

Best Months for Blue Devil Cave

May
Score: 10.0
June
Score: 10.0
July
Score: 10.0

Ideal Conditions for Blue Devil Cave

Water Temp

Thermometer Emoji

23.5°C / 74.3°F

June

Visibility

Telescope Emoji

20.1m / 65.9ft

October

Wave Height

Wave Emoji

0.2m / 0.7ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Blue Devil Cave

Blue Devil Cave follows southern hemisphere patterns with June being the warmest month (23.5°C) and December the coldest (19.5°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.

Scoring Legend:
9-10 (Excellent)
7-8 (Good)
5-6 (Average)
3-4 (Poor)
1-2 (Dangerous)

Last updated: 1 min. ago - Jun 22, 2026

Note: This dive site is not a verified dive site. Please dive with caution. This dive site might have incorrect information by the community.

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