whereshouldidive

Home / Sites / Similan Islands

Similan Islands, as divers saw it.

11 sightings logged by real divers — the clearest picture yet of what's actually down there.

11
Sightings logged
harlequin shrimp
Most spotted
Thailand
Country

Species confirmed at Similan Islands

harlequin shrimp 4
nudibranch 2
stonefish 2
ghost pipefish 2

Recent sightings

Nudibranch · 14 Aug 2026 ♥ 21 View post →
Nudibranch · 11 Aug 2026 ♥ 43 View post →
See all Similan Islands sightings on the map →

Frequently asked questions

What's the most commonly sighted species at Similan Islands?

Harlequin Shrimp is the most frequently confirmed species at Similan Islands, with 4 of the site's 11 verified sightings.

How many confirmed wildlife sightings does Similan Islands have?

11 marine wildlife sightings have been confirmed at Similan Islands, Thailand, sourced from real diver Instagram posts and verified by whereshouldidive.com.

What is Similan Islands particularly known for?

Similan Islands is particularly known for stonefish — it accounts for 10% of every confirmed stonefish sighting across all 32 tracked destinations.