Koh Hin Dap

เกาะหินดับ

Rocky Island Snorkeling

Beginner Peak Season

A small rocky island in the Ang Thong group with shallow reef patches and calm snorkeling.

Depth Range

1–10m

Site Type

snorkeling

Ang Thong Marine Park

Visibility

5–15m

27–30°C

Getting There

1.5 hr from Koh Samui

Ang Thong Marine Park

Live 7-Day Conditions — Koh Hin Dap

SST ~31°C

Mon
18 May

37

poor

31km/h W
0.6m

Tue
19 May

40

marginal

30km/h W
0.6m

Wed
20 May

41

marginal

29km/h SW
0.5m

Thu
21 May

42

marginal

30km/h SW
0.6m

Fri
22 May

41

marginal

28km/h SW
0.5m

Sat
23 May

41

marginal

26km/h SW
0.5m

Sun
24 May

40

marginal

29km/h SW
0.5m

Marine Life

Reef Fish Anemonefish Sea Cucumbers

Notable Features

• Part of Ang Thong archipelago
• Casual snorkeling

Best Time to Visit

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Peak Good Now

About Koh Hin Dap

Koh Hin Dap is one of the many small islands in the Ang Thong archipelago with fringing reefs suitable for snorkeling. The island's rocky shoreline transitions to coral patches at shallow depth, home to typical reef fish and invertebrates. It's occasionally included on snorkeling itineraries.