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Site page for access, visibility, current, wildlife, and seasonality.
Dive Spot Guide•
Siam Bay
Boat-access statue bay on Koh Racha Yai.
Scuba DivingSnorkelingBoatBeginner
Artificial Reef
Siam Bay is a north-side Koh Racha Yai boat dive with a sandy center, rocky edges, and an underwater statue garden that suits easy reef dives.
About Siam Bay
Siam Bay is a boat-only bay on the north side of Koh Racha Yai with a sandy center, rocky edges, hard coral patches, and a famous underwater statue garden. It suits easy reef diving and calm-day training runs, with snorkelers also using the bay when conditions are settled.
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Research Estimate At Siam Bay
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 15m
AccessSimple entry
CoralMixed health
Aquatic LifeGreat variety
FacilitiesBasic facilities
Crowd / PopularityModerate
CurrentLight current
Where Is Siam Bay?
This spotNearby spots
Community sourced coordinates.
Siam Bay Planning Details
Depth range, seasonality, and planning context.
Reported Depth
18m - 20m
Depth Note
Statues and structures are described at 18–20 m (60–66 ft).
Best Season
October to April
Typical Conditions
Calm-day boat dive with light current, mixed sand-and-reef terrain, and an underwater statue focal point.
Safety & Access At Siam Bay
Hazards, restrictions, and access requirements.
Key Hazards
Sharp coral
Safety Notes
Keep buoyancy tight around the statues and coral patches, and follow the mooring line on descent.
Access Restrictions
Boat access only.
Local Intel For Siam Bay
Community notes to help plan your visit.
Scuba
Easy open-water dive with a statue garden and mixed sand-and-reef terrain; a common training run on calm days.
Snorkel
Shows up on snorkel itineraries too, although the statue area is better appreciated on a calm day and with scuba.
Siam Bay Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Siam Bay.
Current Snapshot
No data
🌥️Variable
Sunrise
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Time
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Sunset
No data
Surface / Entry
Wind No data · Tide No data
Sea State
Swell No data · Period unavailable
Visibility Outlook
Rain chance No data
Wind
No data
Swell
No data
Exposure Profile at Siam Bay
Directional shelter context for incoming swell.
Exposure Note
Hourly forecast data is not available yet.
Recent Logged Visits At Siam Bay
Community dive logs and visit reports for this site.
No Dive Logs Yet
Be the first to log a dive at this spot and share your experience!
Dive Spot Log Averages At Siam Bay
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility15m
Activity
No dive activity logged yet.
Siam Bay Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Siam Bay Guide - Sources and Updates
Last Updated
Research Sources
tourphuket.info · Operator
Racha Yai tour page that uses Siam Bay as a snorkel stop and mentions marine life.
www.turismotailandes.org.pt · Official Tourism
Tourism brochure placing Siam Bay on Ko Racha Yai and describing snorkeling around coral reefs.
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