Map location of Siam Bay
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.

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?

Map location of 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
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🌥️Variable
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Sunset
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Surface / Entry
Wind No data · Tide No data
Great
Sea State
Swell No data · Period unavailable
Great
Visibility Outlook
Rain chance No data
Great
Wind
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Swell
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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

scuba-guide.com · Operator Guide

Site page for access, visibility, current, wildlife, and seasonality.

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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