Scuba in Richelieu Rock, Thailand
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Scuba in Richelieu Rock, Thailand

Asia · Thailand · Intermediate / Advanced
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Historical Conditions Overview
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About This Destination

Scuba in Richelieu Rock

Richelieu Rock is a submerged pinnacle located in the Andaman Sea off the coast of Phang Nga Province in southern Thailand. The site rises from depths of approximately 40 meters and features a distinctive boulder formation covered in soft corals, anemones, and diverse macro and reef fish life. Visibility typically ranges from 5 to 20 meters depending on seasonal conditions, with water temperatures between 26-29°C year-round, making it accessible to intermediate and advanced divers seeking nutrient-rich underwater environments.

Pro Tips

Insider Knowledge for Richelieu Rock

  1. 1
    Book dives during November through April when monsoon swells are minimal and visibility is more consistent at 10+ meters
  2. 2
    Arrive with nitrox certification if available, as extended bottom time at 30-40 meter depths reduces nitrogen narcosis effects
  3. 3
    Use a reef hook or lasso to maintain position in current while photographing the boulder's coral formations without causing damage
  4. 4
    Check current speed forecasts before booking; strong currents (1-2 knots) are common and require proper weighting and buoyancy control
  5. 5
    Bring a secondary light source for exploring crevices in the boulder structure where lionfish, nudibranchs, and small crustaceans shelter
Experience Level Guide

Who Should Visit?

⚠️ Richelieu Rock requires intermediate or advanced certification due to depth (30-40m), strong currents, and exposure to open water conditions.
🌱
Beginner
NOT RECOMMENDED
Richelieu Rock is not suitable for beginners due to depth requirements and current exposure.
Intermediate
Intermediate divers can navigate the site with proper weighting and buoyancy control, though deeper sections require attentiveness to air consumption. The coral-covered boulder and surrounding reef fish provide engaging observation points.
🔥
Advanced
Advanced divers exploit the deeper sections (35-40m) to observe pelagic species passing the pinnacle and explore detailed macro life within coral branches and rock crevices. Current drift diving techniques enhance coverage of the site.
💎
Expert
NOT RECOMMENDED
Expert divers conduct deep explorations of the pinnacle's base, execute challenging navigation in variable currents, and conduct specialized photography or research dives in low-visibility conditions.
Month-by-Month Breakdown

Best Time to Visit

Month Epic Score Avg Temp Avg Wind Wave Ht Rating
January
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February
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April
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May
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June
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July
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September
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October
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November
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December
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Based on 10-year historical averages. Scores calculated for intermediate level.
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