Clear water, vibrant coral, and the softest underwater world.

The quiet blue world between the islands.

Koh 7 — also called Koh Payu and known locally as Koh Jèt (jèt = 7 in Thai) — is one of the quiet, dramatic gems of the Similan Islands. There’s no beach, no landing, no crowds. Just deep turquoise water, smooth granite lines, and an underwater world so alive it feels like stepping into another universe.

To say it like a local

Koh Payu = koh pah‑yoo (soft “pah”, gentle “yoo”).
Koh Jèt = koh jèt (jèt means 7 in Thai).

Koh 7 is where the Similan day turns into pure blue.

Arrival at Koh 7 (Koh Payu)

As the boat approaches, the water deepens into that signature Similan blue — still glowing, but with a quiet intensity. Koh 7 rises softly: green slopes, rounded granite, and a calm, untouched presence. You don’t step onto this island; you float beside it.

Pam always leans forward here, pointing at the color shift and saying, “This is where the magic deepens.”

The mood of Koh 7

Koh 7 feels different from Koh 4 and Koh 8 — quieter, deeper, more mysterious. It’s the island that invites you to look beneath the surface.

Expect:

• deeper turquoise water
• dramatic rock formations
• quiet coves
• a peaceful, meditative atmosphere

Koh 7 doesn’t show off — it reveals.

Snorkeling & Diving — the highlight of Koh 7

Koh 7 is famous for its boat snorkeling and dive sites. This is where you jump straight into the water — no beach, no walking, just pure ocean.

What you’ll see underwater

• vibrant coral reefs
• sea turtles gliding slowly
• nemo (clownfish) dancing in anemones
• parrotfish, angelfish, butterflyfish
• schools of colorful tropical fish
• occasional reef sharks in the distance

It’s like swimming in an underwater wonderland.

The visibility here is often incredible, making the reef feel close enough to touch. Snorkelers love it. Divers adore it. Photographers lose track of time.

Why Koh 7 is special

Koh 7 is the quiet chapter between the softness of Koh 4 and the drama of Koh 8. It’s the moment the day becomes deeper, calmer, and more blue.

People love Koh 7 because:

• it’s peaceful and uncrowded
• the snorkeling is some of the best in the Similans
• the marine life is abundant and gentle
• the water is unbelievably clear
• it feels like a secret spot

Koh 7 is the part of the day you remember in slow motion.