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Than Sadet Reef

แนวปะการังธารเสด็จ

Royal Waterfall Beach Reef

Beginner Good Now

A small reef near the famous royal waterfall beach, combining above-water hiking with below-water exploration.

Depth Range

1–6m

Site Type

snorkeling

Koh Phangan

Visibility

3–10m

27–30°C

Getting There

Shore entry

East coast of Koh Phangan

Live 7-Day Conditions — Than Sadet Reef
SST ~30.4°C
Sun
16 Aug
60
good
24km/h W
0.5m
Mon
17 Aug
51
marginal
26km/h W
0.5m
Tue
18 Aug
51
marginal
26km/h W
0.5m
Wed
19 Aug
44
marginal
30km/h W
0.6m
Thu
20 Aug
44
marginal
30km/h W
0.7m
Fri
21 Aug
44
marginal
27km/h W
0.5m
Sat
22 Aug
61
good
24km/h W
0.4m

Marine Life

Reef Fish Anemonefish

Notable Features

  • Combined waterfall and reef experience
  • Royal historic site
  • Nature day trip

Best Time to Visit

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Peak Good Now

About Than Sadet Reef

Than Sadet is famous for its waterfall that Thai kings have visited for centuries. The reef at the beach below is modest but combines nicely with a waterfall hike for a full day of nature. Snorkeling is best in calm months when the east coast is protected.

Tips

Hike the waterfall trail first, then cool off with a snorkel. Only accessible in calm weather.

Experience Required

None.

Location

GPS: 9.7320°N, 100.0380°E

Learn to Freedive in the Gulf of Thailand

Sites like Than Sadet Reef are what the Gulf has to offer. Get certified with us on Koh Samui — train at Sail Rock and Koh Tao in groups of no more than 3, skip the Koh Tao ferry, and dive the best of the region.

New to freediving? Get the free beginner's guide first.

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