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SS President Coolidge (Wreck)

The SS President Coolidge, located in the waters of Vanuatu, is renowned as the ultimate wreck dive destination in the world. Originally a luxurious passenger liner, it was transformed into a troop carrier during WWII. Tragically, while making its way through the Segond Channel, the ship encountered a mine and, despite the captain's efforts to salvage it, it quickly sank.

Today, the SS President Coolidge serves as an extraordinary haven teeming with an abundant variety of fish life. Divers are often delighted by the presence of not only an array of vibrant fish species, but also the occasional sightings of dugongs, turtles, and moray eels in the nearby shallows.

During WWII, Espiritu Santo, the island on which the dive site resides, acted as a crucial military base, heavily fortified with mines. Regrettably, the sailing orders of the President Coolidge failed to provide vital information about the safe entry into the harbors of Espiritu Santo. Unaware of the lurking mine fields and fearing Japanese submarines, the ship attempted to enter the harbor through the most conspicuous channel, resulting in its collision with a mine near the engine room, followed by another devastating explosion near its stern.

Divers exploring the SS President Coolidge can expect a visibility of approximately 16 meters and a maximum depth of 34 meters. This dive site caters to divers of all levels, from beginners to advanced experts. Whether you're looking to embark on an unforgettable underwater adventure or explore the historical significance of this iconic wreck, the SS President Coolidge is a must-visit destination. Located on President College Street in Banban, Sanma, the site offers an unforgettable diving experience that combines awe-inspiring marine life with a rich wartime history.

Diving Conditions Score for SS President Coolidge (Wreck)

8
Very Good

Very good diving conditions!
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for SS President Coolidge (Wreck)

Depth

34m

Visibility

16m

Experience Level

beginner
advanced
expert

Weather Conditions for SS President Coolidge (Wreck)

Wave Height

0.98m

Wind Speed

6.6 m/s

Water Temp

27.3°C

Visibility

42.8km

Cloud Cover

39%

Wave Period

5.7s

Air Temperature

23.1°C

Precipitation

0.2 mm

Detailed 7-Day Diving Forecast for SS President Coolidge (Wreck)
Alpha

Dive Score Chart for SS President Coolidge (Wreck)

Best time to dive: 11:00 with score 8.352133333333335/10. Water conditions: Waves 0.96m, Wind 3.8 m/s.Best night dive time: 21:00 with score 8.386819088319088/10.

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

Sunrise at SS President Coolidge (Wreck): 06:00
Sunset at SS President Coolidge (Wreck): 18:00

Optimal diving conditions at SS President Coolidge (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
21:00

Score: 8.4/10
Waves: 0.8m (5.85s), Wind: 1.7 m/s

🌞
Safest Overall
11:00

Score: 8.4/10
Waves: 0.96m (5.75s), Wind: 3.8 m/s

🌞
Best Day
11:00

Score: 8.4/10
Waves: 0.96m, Wind: 3.8 m/s

Seasonal Analysis for SS President Coolidge (Wreck)
Alpha

Historical patterns and best seasons for diving at SS President Coolidge (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 SS President Coolidge (Wreck)

Summer

Avg. Score: 9.6/10

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

Best Months for SS President Coolidge (Wreck)

June
Score: 9.6
July
Score: 9.6
May
Score: 9.5

Ideal Conditions for SS President Coolidge (Wreck)

Water Temp

Thermometer Emoji

25.5°C / 77.9°F

June

Visibility

Telescope Emoji

13.6m / 44.6ft

December

Wave Height

Wave Emoji

0.8m / 2.6ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for SS President Coolidge (Wreck)

SS President Coolidge (Wreck) follows southern hemisphere patterns with June being the warmest month (25.5°C) and November the coldest (22.2°C). The calmest conditions typically occur in January with average wave heights of 0.8m 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). December is usually the driest month with 2.6mm 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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