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🌊 The Allure of Andaman’s Blue
If you’ve ever visited the Andaman Sea — or even scrolled past a photo of it — you’ll know exactly what we mean. The sea isn’t just blue. It’s dreamlike. From pale turquoise in shallow bays to deep sapphire tones offshore, the Andaman Sea blue feels otherworldly.
So what causes this magical spectrum?
Let’s dive in. 🌞
🔬 The Science Behind the Blue
💡 Sunlight + Clear Water
Water in the Andaman is famously clear, especially around islands like Koh Phi Phi, Similan, and Koh Racha Yai.
Clear water absorbs long wavelengths (like red and orange) and reflects shorter ones — mainly blue. That’s what reaches your eyes.
💡 White Sandy Seafloor
The sea bottom in this region is made up of pale sand and coral. This helps bounce sunlight back through the water, giving it that signature luminous glow.
💡 Depth + Lack of Sediment
Shallower water appears light turquoise. Deeper areas shift into rich indigo. Since the Andaman Sea has fewer rivers feeding in silt and plankton, its blue stays vibrant and unclouded.
🌱 Why It Matters
That vivid Andaman Sea blue is more than just eye candy — it’s a sign of healthy marine life.
Crystal-clear water often means:
- Low pollution
- Active coral reefs
- Great conditions for snorkeling and diving
And yes — the color shifts with weather, sunlight angle, and even the season. At sunset, it can shimmer silver. At midday, it may glow greenish-blue.
📍 Where to See the Best Blues
- Similan Islands — Dive into some of Thailand’s clearest waters.
- Koh Racha Yai — Enjoy shallow turquoise bays with soft white sand.
- Phang Nga Bay — See dramatic blue-green water set against limestone cliffs.
👉 Want to See the Andaman Sea Blue in Real Life?
Join us on a one-of-a-kind journey to Thailand’s most stunning islands. Whether you’re snorkeling in Phi Phi or cruising Phang Nga Bay, you’ll witness the true colors of the Andaman Sea.
🌐 Explore our island tours
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