About this spot
Ao Hin Ngam, located in Surat Thani province, is a working dive destination in Thailand's Gulf region. The bay offers year-round diving potential, making it accessible for divers planning trips across any season. While formal depth and difficulty metrics aren't extensively documented, the spot has attracted enough diver interest to generate community documentation—12 species observations and 3 user-submitted videos provide practical insight into conditions and marine life. The area sits outside a Marine Protected Area, which may affect regulations and conservation status. Divers should verify local entry requirements and any seasonal restrictions with authorities in Surat Thani before planning. Water conditions and visibility fluctuate with season and weather; local dive operators familiar with the site's tidal patterns and currents will offer the best guidance on timing. Coral bleaching is listed as a watch status, indicating the site warrants monitoring. This is common across Thailand's reefs and reflects broader climate stressors rather than unique degradation. The documented species observations suggest healthy biodiversity remains accessible. Community contributions—videos and sighting logs—continue building the knowledge base for this lesser-known spot, making it valuable for divers willing to explore beyond mainstream venues.
📖 Guide: Diving in Thailand: 73 Sites from Whale Sharks to Shallow Reefs
Best months
Dive types
Trip essentials
Everything you need before you pack — checklist, sun, logistics.
Trip checklist
- 🛂 Visa-free or visa-on-arrival
- 🤿 Pack: 3/2 mm shorty
- 📜 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 · 49%
- 🤿 Wetsuit 3/2 mm shorty
- 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
›Is Ao Hin Ngam open to diving year-round?
Yes, the bay is generally diveable throughout the year. However, sea conditions, visibility, and weather vary seasonally. Consult local dive operators or authorities in Surat Thani for specific monthly conditions and any temporary closures.
›What marine life can I expect to see?
Twelve species have been recorded at Ao Hin Ngam. The community database and user videos provide the most current sighting data. Common Gulf of Thailand species likely include reef fish, rays, and smaller sharks, though exact species vary by depth and season.
›Do I need permits to dive here?
Ao Hin Ngam is not within a Marine Protected Area, but local regulations in Surat Thani may still apply. Check with provincial authorities and established dive operators before diving to confirm current entry requirements and fees.
›What is the coral bleaching status and what does it mean?
The site is marked as 'watch' for coral bleaching. This indicates ongoing monitoring is recommended but does not mean current severe damage. Bleaching status reflects broader climate trends affecting Thai reefs. Current conditions should be verified with recent diver reports.
