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Princess Bay

Intermediate 📍 Thailand
Photo: Unsplash / Jeremy Bishop

Scuba diving – photo by Jeremy Bishop on Unsplash

# Princess Bay, Miang Island, Similan Islands

Dive Conditions

⬇️
Depth
12m – 40m
👁️
Visibility
16m
🎯
Level
Intermediate
💨
Current
〜 Mild
📅
Best Season
November to April

Princess Bay is a scenic dive site located at Miang Island in Thailand’s renowned Similan Islands archipelago. This moderate dive site features stunning granite boulder formations and sandy slopes descending to depths of 12-40 meters, making it suitable for intermediate divers and above.

The site showcases impressive underwater topography with large rock formations creating natural swim-throughs and crevices. Divers explore a dynamic marine environment rich with biodiversity. Common sightings include colorful reef fish, fusiliers, snappers, and occasional larger pelagics. The area supports healthy coral growth on the rocks, hosting various anemones and crustaceans.

Princess Bay’s protected bay location provides relatively calm conditions, with generally good visibility ranging from 8-25 meters depending on season. The site is particularly popular during dry season months from November to April when seas are calm.

The combination of dramatic underwater geology, abundant marine life, and accessible depths makes Princess Bay an excellent choice for divers seeking to experience the Similan Islands’ signature boulder formations and thriving reef ecosystem.

🐠 Marine Life at This Dive Site

Sagaminopteron psychedelicum — seen at this dive site
Sagaminopteron psychedelicum Sagaminopteron psychedelicum islugyouuu
Clark's Anemonefish — seen at this dive site
Clark's Anemonefish Amphiprion clarkii petemcgee
Skunk Anemonefish — seen at this dive site
Skunk Anemonefish Amphiprion akallopisos gottscho
Ornate Ghostpipefish — seen at this dive site
Ornate Ghostpipefish Solenostomus paradoxus regray
Shortpouch Pygmy Pipehorse — seen at this dive site
Shortpouch Pygmy Pipehorse Acentronura breviperula itaig95
Powder Blue Tang — seen at this dive site
Powder Blue Tang Acanthurus leucosternon gottscho

Species data from iNaturalist (CC BY-NC)

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Max Depth 40 m
Min Depth 12 m
Difficulty Intermediate
Current Mild
Visibility 16 m
Best Season November to April
GPS 8.5719°, 97.6358°