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Fish Rock Cave

Fish Rock Cave is the premier ocean cave dive site in Australia, located in New South Wales. With a length of 125 meters, the cave runs right through Fish Rock, offering an unparalleled diving experience. Positioned along the path of the East Australian Current (EAC), the site benefits from warm and crystal-clear water, attracting a diverse range of temperate and tropical marine species.

Prepare to be amazed by the abundance of marine life at Fish Rock Cave. On most days, you can encounter 20-30 Grey Nurse Sharks, along with an abundance of Wobbegong sharks, Turtles, and Rays. The unique ecosystem of Fish Rock sets it apart, with the temperature inside the cave always at least one degree warmer than the surrounding ocean, ensuring suitable conditions for various species. The entrance of the cave, at a depth of 12 meters, is a spacious and naturally lit cavern adorned with vibrant pink gorgonian corals. This area teems with marine life, creating an immersive and memorable dive. Don't miss the opportunity to explore the bubble cave, where you can communicate with your dive buddy while submerged five meters underwater.

For a deeper exploration, the entrance at 24 meters opens up to the main section of the cave. Here, you may encounter resident black cod, majestic wobbegong sharks, black rays, and giant cuttlefish. The presence of Grey Nurse Sharks can be enjoyed at Fish Rock throughout the year. During the summer months, these magnificent creatures rest in the shallow cave entrance, offering an awe-inspiring sight even for the most seasoned divers. It's an ideal moment for photographers, both novice and experienced, to capture striking underwater images.

Around Fish Rock, the average depth varies between 15 and 30 meters. Deep gutters create ideal gathering spots for the sharks and other marine creatures that call this area home. The western fringe of Fish Rock benefits from the currents that attract a diverse range of marine life, including fish, turtles, moray eels, and the friendly blue groper. On the eastern side of Fish Rock, the dramatic sheer walls descend to an average depth of 30 meters. This area is rarely affected by strong currents, offering a tranquil and picturesque underwater landscape. Among the boulders that resemble small houses, you can find camouflaged Wobbegong sharks and clouds of Bullseyes.

To the north of Fish Rock, a pinnacle rises 30 meters from the sea floor almost reaching the surface at a depth of 7 meters. This pinnacle is considered one of the best dive locations at Fish Rock. You can encounter Turtles, Grey Nurse Sharks, Giant Queensland Groper, and a remarkable diversity of fish life here.

Fish Rock Cave is suitable for divers of all levels, from beginners to advanced. With a maximum depth of 24 meters and a visibility of approximately 14 meters, it promises an unforgettable diving experience. Book your dive at this incredible Australian dive site today.

Diving Conditions Score for Fish Rock Cave

5.6
Average

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

Dive Site Overview for Fish Rock Cave

Depth

24m

Visibility

14m

Experience Level

beginner
advanced

Weather Conditions for Fish Rock Cave

Wave Height

1.04m

Wind Speed

9.3 m/s

Water Temp

21.6°C

Visibility

8.24km

Cloud Cover

100%

Wave Period

7.4s

Air Temperature

18.5°C

Precipitation

0.1 mm

Detailed 7-Day Diving Forecast for Fish Rock Cave
Alpha

Dive Score Chart for Fish Rock Cave

Best time to dive: 10:00 with score 6.416589247311828/10. Water conditions: Waves 0.98m, Wind 3.1 m/s.Best night dive time: 0:00 with score 6.361215419501134/10.

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

Sunrise at Fish Rock Cave: 06:00
Sunset at Fish Rock Cave: 18:00

Optimal diving conditions at Fish Rock 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
10:00

Score: 6.4/10
Waves: 0.98m (7.75s), Wind: 3.1 m/s

🌙
Best Night
0:00

Score: 6.4/10
Waves: 1.06m, Wind: 2.2 m/s

Seasonal Analysis for Fish Rock Cave
Alpha

Historical patterns and best seasons for diving at Fish Rock 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 Fish Rock Cave

Summer

Avg. Score: 8.6/10

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

Best Months for Fish Rock Cave

June
Score: 8.6
July
Score: 8.6
August
Score: 8.5

Ideal Conditions for Fish Rock Cave

Water Temp

Thermometer Emoji

19.4°C / 66.9°F

January

Visibility

Telescope Emoji

13.2m / 43.3ft

November

Wave Height

Wave Emoji

1.3m / 4.3ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Fish Rock Cave

Fish Rock Cave follows southern hemisphere patterns with January being the warmest month (19.4°C) and June the coldest (13.2°C). The calmest conditions typically occur in January with average wave heights of 1.3m 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). June 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 11, 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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