Where the water is calm, the beaches are soft, and everything feels like a quiet holiday.

Koh 4 (Koh Miang) is the gentle, family‑friendly chapter of the Similan Islands.
If Koh 9 is dramatic and Koh 8 is iconic, Koh 4 is peaceful — all calm bays, soft sand, and warm water that feels like a natural swimming pool. It’s the island where people slow down, breathe, and let the day unfold softly.

This is the Similan island that feels like a quiet vacation inside a national park.

Honeymoon Bay Reef

อ่าวเล็ก หรืออ่าวฮันนีมูน
Ao Lek or Ao Honeymoon

Honeymoon Bay is the softest, calmest snorkeling spot on Koh 4. The water is warm and shallow, the sand is soft, and the coral patches begin just a few steps from the beach. It’s peaceful, gentle, and perfect for slow floating.

What makes it beautiful

• Calm, beginner‑friendly water
• Easy beach entry
• Soft white sand
• Coral patches close to shore

Fish you’ll see

• ปลาสลิดทะเล (Pla Salid Talay) — rabbitfish — “the polite vegetarian”
• ปลาผีเสื้อเหลือง (Pla Phee Suea Lueang) — yellow butterflyfish — “the sunshine flutter”
• ปลาจิ๋วฟ้า (Pla Jiw Fa) — blue damselfish — “the tiny electric boss”

Honeymoon Bay is the ‘I could float here forever’ kind of calm.

Princess Bay Reef

อ่าวเจ้าหญิง
Ao Chao Ying

Princess Bay is the brighter, slightly deeper sister of Honeymoon Bay. The water is still calm, but the coral gardens are wider, and the visibility is beautiful. It’s the perfect spot for relaxed snorkeling with a little more color.

What makes it beautiful

• Clear, calm water
• Coral gardens stretching along the bay
• Soft afternoon light
• Easy, slow snorkeling

Fish you’ll see

• ปลานกแก้ว (Pla Nok Kaew) — parrotfish — “the loud coral‑crunching gossip queen”
• ปลาสินสมุทร (Pla Sin Samut) — angelfish — “the dramatic diva”
• ปลากระพงลาย (Pla Krapong Lai) — wrasse — “the color‑changing chameleon”

Princess Bay is the gentle, glowing side of Koh 4.

Koh 4 East Coral Line

แนวปะการังด้านตะวันออกเกาะ 4
Naew Pakarang Dan Tawan‑ok Koh Si

The east side of Koh 4 is a long, shallow coral line with warm water and soft currents. It’s simple, peaceful, and perfect for beginners or anyone who wants a slow, dreamy snorkel.

What makes it beautiful

• Warm, shallow water
• Coral heads close to the surface
• Gentle currents
• Wide visibility

Fish you’ll see

• ปลาผีเสื้อปากยาว (Pla Phee Suea Pak Yao) — long‑nose butterflyfish — “the elegant one”
• ปลาคราม (Pla Kram) — blue‑green chromis — “the sparkling confetti”
• ปลาสลิดทะเล (Pla Salid Talay) — rabbitfish — “the polite vegetarian”

The east line is Koh 4’s soft, slow, afternoon walk underwater.

Koh 4 West Boulder Patch

แนวก้อนหินด้านตะวันตกเกาะ 4
Naew Kon Hin Dan Tawan‑tok Koh Si

The west side is slightly deeper, with granite boulders and coral blocks scattered between sandy channels. It’s still gentle — just a little more textured and adventurous.

What makes it beautiful

• Granite boulders underwater
• Coral blocks mixed with sand
• Clear, deep‑blue water
• Peaceful, slow‑moving atmosphere

Fish you’ll see

• ปลาฟูซิเลียร์ (Pla Fusilier) — fusilier — “the silver confetti cloud”
• ปลาทรัมเป็ต (Pla Trumpet) — trumpetfish — “the long, shy pretender”
• ปลานกแก้วรุ้ง (Pla Nok Kaew Rung) — rainbow parrotfish — “the colorful chaos machine”

The west patch is where Koh 4 adds a little sparkle to its softness.

Koh 4 is the gentle heart of the Similan Islands — the twin‑beach, warm‑water, slow‑floating chapter. It’s where the ocean feels friendly, the sand feels soft, and the day feels like a quiet holiday inside a national park.

It’s the island that reminds you to breathe.