Koh Sak
เกาะสาก
Horseshoe Island
Beginner
A horseshoe-shaped island with a sheltered bay and reef slopes dropping to 30m on the outer walls.
Depth Range
3–30m
Site Type
reef
Pattaya & Sattahip
Visibility
5–15m
26–30°C
Getting There
30 min boat from Pattaya
Near Koh Larn
Live 7-Day Conditions — Koh Sak
SST ~30.8°C
Sun
14 Jun
14 Jun
57
Mon
15 Jun
15 Jun
50
Tue
16 Jun
16 Jun
50
Wed
17 Jun
17 Jun
51
Thu
18 Jun
18 Jun
52
Fri
19 Jun
19 Jun
53
Sat
20 Jun
20 Jun
58
Marine Life
Reef Fish
Nudibranchs
Moray Eels
Seahorses
Notable Features
- • Horseshoe shape creates sheltered bay
- • Macro photography
- • Deep outer walls
Best Time to Visit
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Peak
Good
Now
About Koh Sak
Koh Sak is a small, crescent-shaped island near Koh Larn. The horseshoe shape creates a sheltered inner bay perfect for beginners, while the outer walls drop steeply to 30m for more experienced divers. The sheltered inner reef is home to seahorses and nudibranchs, making it a macro photography destination.
Tips
Inner bay for beginners, outer wall for advanced. The west side drops deepest.
Experience Required
All levels depending on area.
Location
GPS: 12.9300°N, 100.7900°E