Olympia Maru (Wreck)
Today, this WWII wreck has transformed into a captivating artificial reef adorned with a vibrant array of hard and soft corals, offering divers an extraordinary opportunity to spot jack fish. Resting upright with a gentle tilt to the port-side, the wreck lies at a depth of 30 meters, where powerful currents gracefully sweep over it. While some sections of the wreckage remain intact, remnants of its past can still be observed. Notably, the boiler room stands out as a primary attraction, although cautious exploration is essential due to its deteriorating state.
With a visibility of approximately 9 meters and a maximum depth of 26 meters, this dive site is recommended for advanced divers seeking an enriching underwater experience.
Diving Conditions Score for Olympia Maru (Wreck)
Very good diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Olympia Maru (Wreck)
Depth
26m
Visibility
9m
Experience Level
Weather Conditions for Olympia Maru (Wreck)
Wave Height
0.12m
Wind Speed
6.9 m/s
Water Temp
31.1°C
Visibility
36.2km
Cloud Cover
98%
Wave Period
3.85s
Air Temperature
26.7°C
Precipitation
0 mm
Dive Score Chart for Olympia Maru (Wreck)
Best time to dive: 8:00 with score 9.198855251141552/10. Water conditions: Waves 0.12m, Wind 1.5 m/s.Best night dive time: 23:00 with score 9.029673160173157/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Olympia Maru (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.
Score: 9.2/10
Waves: 0.12m (3.65s), Wind: 1.5 m/s
Score: 9.0/10
Waves: 0.1m, Wind: 0.7 m/s
Seasonal Analysis for Olympia Maru (Wreck)Alpha
Historical patterns and best seasons for diving at Olympia Maru (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 Olympia Maru (Wreck)
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Olympia Maru (Wreck)
Ideal Conditions for Olympia Maru (Wreck)
Water Temp
26.9°C / 80.4°F
July
Visibility
15.0m / 49.2ft
November
Wave Height
1.2m / 3.9ft
January
Wave Period
8.0s
January
Seasonal Insights for Olympia Maru (Wreck)
Olympia Maru (Wreck) shows typical northern hemisphere patterns with May being the warmest month (28.3°C) and December the coldest (23.4°C). The calmest conditions typically occur in January with average wave heights of 1.2m 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). February is usually the driest month with 0.1mm 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 20, 2026