thailanddiveandsail.com · Dive Guide
Season, visibility, currents, and Island 4 support for the Similan Islands.
Dive Spot Guide•
Princess Bay
Princess Bay is a shallow Similan bay reef with coral blocks.
Local operator required
Boat or liveaboard logistics are the normal route, and park-season rules shape the trip.
Boat-accessed bay reef on Similan Island 4 with gentle slopes, mild current, and open-season planning.
About Princess Bay
Princess Bay is a shallow Similan bay reef with coral blocks and sandy patches near Koh Miang. It is known for turtles, blue-spotted stingrays, sand eels, snapper, and a relaxed beginner-friendly profile that suits slow reef watching and easy boat planning in the open season. The slope stays gentle enough for training dives and long, unhurried bottom time when the bay is calm.
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Research Estimate At Princess Bay
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 15m
AccessModerate entry effort
CoralHealthy coral
Aquatic LifeGreat variety
FacilitiesGood facilities
CurrentLight current
Where Is Princess Bay?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Princess Bay Planning Details
Depth range, seasonality, and planning context.
Reported Depth
5m - 20m
Depth Note
Shallow top around 5 m with a slope to about 20 m.
Best Season
November-April
Typical Conditions
Shallow slope with sand patches, coral blocks, slight current, and visibility that is often better in the dry season.
Safety & Access At Princess Bay
Hazards, restrictions, and access requirements.
Key Hazards
Restricted access
Safety Notes
Keep buoyancy controlled over coral blocks and plan around park windows and tide changes.
Access Restrictions
Access runs through national-park boat logistics on Similan Island 4, with seasonal closures outside the open season.
Legal Notes
Mu Ko Similan National Park controls access and closes the islands outside the open season.
Local Intel For Princess Bay
Community notes to help plan your visit.
Scuba Diving
A shallow sloping bay reef with sand patches and coral blocks, suited to relaxed reef time and training-style dives.
Freediving
The shallow top can work for calm-day freediving, but the site is best treated as a managed boat-stop reef.
Snorkeling
The shallow top and sheltered bay shape make calm-day snorkeling practical.
Wildlife at Princess Bay
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Princess Bay
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Princess Bay
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility15m
Activity
No dive activity logged yet.
