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Rena (Wreck)

The Rena Wreck is situated on the Astrolabe Reef, 12 nautical miles from the entrance of Tauranga Harbour in the Bay of Plenty, New Zealand. It is a popular dive site for advanced and expert divers due to its maximum depth of 24m. However, it is important to note that diving should only be done in calm conditions with swells under 1m, as the current can be strong depending on the tide.

The Rena wreckage, fully submerged, occupies less than 2% of the total reef area. It can be divided into three parts, each with its own mooring buoys. Dive Site 1, marked by an orange mooring buoy labeled "Dive Site 1 - 18m," is an excellent spot to explore the separated bow pieces. Divers can descend at the buoy down the shotline, head northeast along the wreck pieces with the reef on their right side, and explore the marine environment in the natural gullies. The same buoy can be used to ascend, and a safety stop marker is attached to the shotline to assist divers in their ascents.

Dive Site 2, also indicated by an orange mooring buoy labeled "Dive Site 2 - 14m," should be approached with caution due to greater surge. This site is located near the peak of the reef and consists of three loops. It is recommended to follow the trails from deepest to shallowest, starting with trail 2A, then 2B, and finally 2C. However, please note that completing all three trails on one dive may not be feasible.

Trail 2A, known as "The Wall," involves descending from the shotline and following the topography on a decline with the reef wall on the left. Exploring the open side of the wreckage, divers can loop back with the reef wall on their right side before returning to the shotline.

Trail 2B, named "Double Bottom," requires heading south from the shotline as the depth drops down into a bowl. Divers should swim at a depth no greater than 18m until they reach the double hull section resting against the southern face of the reef. Within the reef structure, numerous crevasses can be explored. To return to the shotline, traverse the wreckage and head north.

Trail 2C, referred to as "Bow Structure," involves heading northwest from the shotline, following the topography upwards with the reef wall on the right. Gradually ascending, divers will eventually encounter the section of the bow structure. It is advisable to swim around the structure in an anticlockwise rotation (keeping the wreckage to the left) before following the topography back down toward the shotline.

With a visibility of approximately 10m, the Rena Wreck provides a captivating underwater experience for divers seeking a challenging and immersive dive site.

Diving Conditions Score for Rena (Wreck)

5
Average

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

Dive Site Overview for Rena (Wreck)

Depth

24m

Visibility

10m

Experience Level

advanced
expert

Weather Conditions for Rena (Wreck)

Wave Height

0.84m

Wind Speed

31.3 m/s

Water Temp

15.5°C

Visibility

51.06km

Cloud Cover

75%

Wave Period

4.95s

Air Temperature

12.6°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Rena (Wreck)
Alpha

Dive Score Chart for Rena (Wreck)

Best time to dive: 10:00 with score 6.701438226299695/10. Water conditions: Waves 0.78m, Wind 30.6 m/s.Best night dive time: 23:00 with score 6.741470760233918/10.

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

Sunrise at Rena (Wreck): 06:00
Sunset at Rena (Wreck): 18:00

Optimal diving conditions at Rena (Wreck) 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
23:00

Score: 6.7/10
Waves: 0.58m (5.7s), Wind: 23.1 m/s

🌞
Safest Overall
10:00

Score: 6.7/10
Waves: 0.78m (5.45s), Wind: 30.6 m/s

🌞
Best Day
10:00

Score: 6.7/10
Waves: 0.78m, Wind: 30.6 m/s

Seasonal Analysis for Rena (Wreck)
Alpha

Historical patterns and best seasons for diving at Rena (Wreck)

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 Rena (Wreck)

Summer

Avg. Score: 7.9/10

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

Best Months for Rena (Wreck)

July
Score: 8.0
June
Score: 7.8
August
Score: 7.8

Ideal Conditions for Rena (Wreck)

Water Temp

Thermometer Emoji

17.7°C / 63.9°F

February

Visibility

Telescope Emoji

12.0m / 39.4ft

August

Wave Height

Wave Emoji

2.3m / 7.5ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Rena (Wreck)

Rena (Wreck) follows southern hemisphere patterns with February being the warmest month (17.7°C) and October the coldest (11.6°C). The calmest conditions typically occur in January with average wave heights of 2.3m 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). 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 - Jul 9, 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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