About this spot
Richelieu Rock stands as one of Thailand's most celebrated dive destinations. Located in the Andaman Sea, this submerged pinnacle attracts divers seeking challenging conditions and rich biodiversity. The site is accessible year-round, making it a consistent option for dive operators in the region. The rock formation creates a dynamic diving environment shaped by strong water movement. This current-driven ecosystem supports diverse species attracted to the nutrient-rich flow. Divers can expect encounters with larger pelagic species and reef-associated fish, making each descent unpredictable and engaging. Coral health monitoring indicates alert-level bleaching stress at the site, consistent with broader Andaman Sea conditions. Despite this, the site maintains ecological value and active community engagement. Twelve species observations have been documented by divers, and community contributions include video records that document current conditions and marine encounters. Richelieu Rock remains unprotected by marine protected area designation, meaning access is open to operators and independent divers. The site's popularity stems from its reputation for dramatic marine encounters and the technical challenge posed by surge and current.
📖 Guide: Diving in Thailand: 73 Sites from Whale Sharks to Shallow Reefs
Best months
Marine life
Dive types
Trip essentials
Everything you need before you pack — checklist, sun, logistics.
Trip checklist
- 🛂 Visa-free or visa-on-arrival
- 📜 C-card + dive insurance (DAN)
- 📔 Dive logbook
- 🧴 Reef-safe sunscreen SPF 50+
- 🔌 Plug type A/B/C · 220V adapter
- 💊 Seasickness meds + ear drops
- 📱 Offline maps + emergency contact
Quick facts
- 🌓 Moon First quarter · 47%
- GPS
› Sustainability disclosures
From your departure country
- Visa: Visa on arrival · 30 days max
- Flight: 11h · direct
- Jet-lag: 12h east · 8 days recovery
FAQ
›When is the best time to dive Richelieu Rock?
Richelieu Rock is accessible year-round. The Andaman Sea maintains consistent conditions throughout the year, though seasonal weather patterns can affect boat operations and sea state. Check with local operators for current conditions during monsoon periods.
›What is the depth and difficulty level?
Specific depth and difficulty ratings are not standardized for Richelieu Rock. The site is known for strong currents and dynamic conditions, so experience with current diving is recommended. Contact local dive operators for current-specific details and site conditions.
›What marine life can I expect to see?
Richelieu Rock supports diverse marine species, with 12 documented observations recorded by the diving community. The site is known for pelagic encounters and reef fish attracted by nutrient-rich currents. Expect variable wildlife depending on season, current strength, and visibility conditions.
›Do I need permits to dive Richelieu Rock?
Richelieu Rock is not within a marine protected area, so no special permits are required. However, dives must be conducted with licensed operators. Check current Thai regulations with your dive shop before booking.
