Diving atThe Coolidge Ltd (Vanuatu)
The SS President Coolidge, a sprawling former luxury liner turned troop transport, lies largely intact on a sloping sandy bottom off Espiritu Santo, Vanuatu. This monumental wreck offers divers a multi-level exploration, starting from its bow at around 21 m (69 ft) and descending to its stern between 60-70 m (197-230 ft). A typical dive might traverse the forward cargo holds or the iconic 'Lady' porcelain relief at around 30 m (100 ft), revealing layers of history and marine growth.
As evening covers The Coolidge Ltd, the local air temperature is measured at 25.5°C. The current wave height at the surface is recorded at 1.3 m. These late-day readings characterize the surface conditions for the night.
Dive Site Location & Key Facts
Everything you need to know about this dive site.
Dive Site Overview
More than a simple dive, encountering the SS President Coolidge means immersing oneself in a preserved piece of World War II history. This colossal wreck demands multiple excursions to truly grasp its immense scale and the myriad artifacts held within.
What started as a luxurious passenger liner, its hurried conversion to a troop carrier ended abruptly in 1942 when it struck mines, now resting on its port side. Divers can navigate through extensive cargo holds, revealing Jeeps, cannons, and military supplies remarkably intact.
Deeper excursions lead to areas like the engine room, found at around 45 m (148 ft), and the grand first-class swimming pool, located deeper at approximately 55 m (180 ft). Further still, one might discover the ship's barber shop, medical bays, or officers' quarters, each presenting a distinct glimpse into the lives onboard.
This isn't merely a wreck; it's a complex, multi-level underwater museum, requiring respect for its historical significance and the advanced diving skills necessary to safely navigate its intricate passages and varying depths.
The Coolidge Ltd
Conditions are Moderate
Best Dive Window
Optimal conditions expected
Current conditions near The Coolidge Ltd show 25° air, 28° sea temperature, 1.3 m waves, and 26 km/h wind. Forecast data is refreshed regularly to ensure accuracy.
Best Time to Dive
For an optimal dive experience on The Coolidge, conditions are generally favorable year-round, consistently showing good dive scores. The months from May through November typically see less rainfall, with averages dropping to 4-8 mm, which can contribute to better visibility. Air temperatures during these drier periods range from 24-25.5°C (75-78°F), providing comfortable surface intervals. Conversely, December through April experience higher rainfall, around 11-16 mm, though water temperatures remain warm, hovering between 26-27°C (79-81°F) as noted by various dive logs. Wave heights are generally manageable, averaging 0.6-1.0 m (2-3 ft), with slightly calmer seas from November to April.
PEAK SEASON SCORE
Scores combine air & water temps, waves, wind & rainfall for overall conditions.
BEST MONTHS TO DIVE
Monthly records compiled from satellite and marine observation nodes over the last 3 years. Data provided by Open-Meteo and MET Norway.
Dive Experience & Conditions
Divers often enter The Coolidge from the bow, beginning their descent into its immense structure. The wreck presents varied depths, with a common initial dive reaching around 30 m (100 ft). This entry level offers glimpses into its upper decks and cargo areas. As you move deeper into the wreck, water temperatures are consistently warm, reported at 26-27°C (79-81°F), allowing for comfortable diving in lighter exposure suits. Advanced Open Water certification is a prerequisite for exploring depths beyond 18 m (60 ft), particularly for dives targeting the 30 m (100 ft) mark. Deeper excursions, such as those to the engine room at 45 m (148 ft) or the stern between 60-70 m (197-230 ft), require technical diving expertise.
Dive Difficulty & Safety Guidelines
Diving the SS President Coolidge is a deep wreck experience requiring careful planning and adherence to safety protocols. Penetration dives, especially into cargo holds 1 and 2, demand appropriate training, such as wreck and technical diving certifications, due to the complexity and overhead environments. Divers should always be accompanied by experienced guides familiar with the wreck's layout and potential hazards. Maintaining proper buoyancy control is critical to prevent disturbing silt and preserving the delicate artifacts. Always monitor bottom time and gas consumption closely, particularly given the varying depths and extended exploration possibilities this site presents.
Recommended Equipment
Technical depth range. Advanced planning, gas management, and appropriate certification required.
Overhead / entanglement risk. Wreck penetration requires proper training.
- Dive Computer
- DSMB
- Primary & Backup Lights
- Wreck Reel
- Cutting Tool
- Hard-soled Dive Boots
This gear list is based on verified equipment signals for The Coolidge Ltd, Vanuatu. Always confirm final gear choices with your dive operator, guide, or liveaboard.
Recommended Dive Suit
Weather models currently point toward consistent diving conditions over the next several days.
For typical recreational dives, 2-3mm shorty or light wetsuit generally provides comfortable insulation. Consider warmer surface protection (like a boat coat) due to brisk winds.
Recent environmental data from The Coolidge Ltd indicates water temperatures near 28°C (82°F). Surface air temperatures are resting at 25°C (78°F).
Emergency & Medical Support
Essential information to help you plan your dive trip to The Coolidge Ltd.
Hyperbaric chambers are a critical part of dive safety infrastructure. Availability varies significantly by region, and not all dive areas have immediate access.
Before diving, it's recommended to:
- confirm nearest medical facilities
- check emergency procedures with local dive operators
- ensure dive insurance covers evacuation if required
Divers Alert Network
Diving emergency assistance available through DAN World.
+1-919-684-9111- 24/7 emergency hotline
- Diving medical assistance
- Evacuation coordination
Emergency contacts are provided for reference. Always verify local emergency services before diving.
Marine Life at The Coolidge Ltd
The Coolidge wreck has become an artificial reef, supporting a diverse array of marine life. Among its metal structures, divers frequently encounter large schools of fish. Moray Eels often hide within crevices and around compartments, while Garden Eels can sometimes be observed in the sandy areas surrounding the wreck. Starfish cling to the hull, and sea anemones occasionally punctuate the surfaces, adding splashes of color to the submerged history. Larger pelagics like Tuna sometimes pass by the deeper sections of the site.
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Search Flights on ExpediaFrequently Asked Questions
What certification level is required for diving The Coolidge?
An Open Water certification allows for limited exploration of the shallower parts of the wreck. For dives beyond 18 m (60 ft) to the most accessible and iconic sections, an Advanced Open Water certification is necessary. Deeper penetration and visits to the stern require technical diving qualifications.
What is the typical water temperature?
The water temperature around The Coolidge is consistently warm, generally ranging between 26-27°C (79-81°F). This tropical warmth makes for comfortable diving, often requiring only a 3mm wetsuit or shorty.
What are the main features to see on the wreck?
Key features include the cargo holds with military equipment, the iconic 'The Lady' porcelain relief, the engine room, and the first-class swimming pool. Its sheer size means multiple dives are needed to explore a significant portion of the ship.
How many dives are recommended for The Coolidge?
Given its enormous size and the variety of sections, many divers opt for multiple dives, often three to five over several days, to fully appreciate different areas like the bow, cargo holds, and deeper stern sections.
Is night diving available on The Coolidge?
Yes, night dives are sometimes offered, particularly into the cargo holds. This experience can offer a unique perspective on the wreck and its nocturnal inhabitants.
Are currents an issue at this dive site?
Currents at The Coolidge are not consistently reported as strong, but local conditions can vary. Dive operators will assess and brief on any specific current concerns on the day of your dive.
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The Coolidge Ltd
Conditions are Moderate
Best Dive Window
Optimal conditions expected
Current conditions near The Coolidge Ltd show 25° air, 28° sea temperature, 1.3 m waves, and 26 km/h wind. Forecast data is refreshed regularly to ensure accuracy.