Koh Thalu snorkelling: how a trip works
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Koh Thalu, often spelled Koh Talu, is the best-known island off the Bang Saphan coast. Shallow coral, clear water on calm days and a short boat ride make it a popular snorkelling trip. You do not need diving experience. Here is what to know before you go.
Where Koh Thalu is
Koh Thalu sits about 7 to 8 km off the coast, with the smaller rock islands of Koh Sang and Koh Sing nearby. Many sources place the islands in Bang Saphan Noi. The main island is about 2 km long from north to south. Its name comes from a natural opening through the rock on its northern headland.
Snorkelling on shallow coral
The reefs around Koh Thalu and Koh Sang are shallow, so you can often see coral from the surface. Look for staghorn, brain and flower corals, sea fans and colourful reef fish. Visibility depends on the season and the sea. The coral around Koh Sing and Koh Sang has declined in recent years, so expect a mixed picture.
A protected area in the making
The islands are part of Ao Siam National Park, which is still being set up. At the time of a Bangkok Biz News report, the park was not yet fully declared. It covers the Koh Thalu marine area, Koh Sing and Koh Sang, and forest on the mainland. Sea turtles nest on Koh Thalu, and a rare coastal plant grows on its tip. Rules may change once the park is official.
Getting there
There is no public ferry. Visitors go on a boat trip from the Bang Saphan coast. A regular boat takes about 30 minutes and a speedboat about 15 minutes. A private resort runs on the island and arranges transfers, meals and snorkel trips. Departures depend on wind and waves.
Other things to do on the island
Some trips include kayaking around the island, which takes about 2.5 hours at an easy pace. Muk Bay is calm and good for photos, and Sai Yai Bay suits snorkelling and kayaking. The eastern side has a 'coral graveyard' beach piled with old coral pieces. It is interesting to see but not a swimming beach.
Best time to go
Go when the sea is calm and the sky is clear. Guides disagree on exact months, so check the forecast and ask the boat operator. Weekends are busy with Thai day-trippers, so a weekday trip is usually quieter.
Frequently asked questions
Is koh talu good for snorkeling
Yes for beginners, thanks to shallow reefs you can see from the surface. Coral health varies, and some areas have declined.
How long is the boat to Koh Thalu?
About 15 minutes by speedboat or 30 minutes by regular boat, depending on the sea.
Can I do a Koh Talu snorkeling trip from Hua Hin?
Yes, but it is a long day. Hua Hin is about 160 km north of Ban Krut, so staying in Ban Krut or Bang Saphan first is easier.
We give no fixed prices or timetables, because they change. Check the official source (for trains, the State Railway of Thailand at railway.co.th) before you travel.
