Dive site · access from Surin Islands (Mu Ko Surin)
HQ Channel
The shallow channel between Surin Nuea and Surin Tai, near the national-park headquarters.
- Depth
- 3–15m
- Current
- Mild
- Minimum level
- Open water
- Access
- Boat
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The case for it
Why dive here
- Shallow reef channel by the park headquarters
- Hard-coral gardens recovering after 2010 bleaching
- Anemonefish and reef fish; suits easy and night dives
Check before booking
What may rule it out
- Conditions can change. Confirm depth, current and access with a local operator.
Access and timing
Plan this through Surin Islands (Mu Ko Surin)
Best overall months: Jan, Feb, Mar, Apr, Dec. Check the destination planner for operating season, wildlife and other matching sites.
Wildlife
Seen around Surin Islands (Mu Ko Surin)
rareoccasionalcommonly seenpeak seasondestination closed
These are destination-level records, not confirmed sightings at HQ Channel.
Reef manta ray
| Month | Likelihood |
|---|---|
| January | occasional |
| February | occasional |
| March | occasional |
| April | occasional |
| May | occasional |
| June | destination closed |
| July | destination closed |
| August | destination closed |
| September | destination closed |
| October | occasional |
| November | occasional |
| December | occasional |
Whale shark
| Month | Likelihood |
|---|---|
| January | rare |
| February | occasional |
| March | occasional |
| April | occasional |
| May | rare |
| June | destination closed |
| July | destination closed |
| August | destination closed |
| September | destination closed |
| October | rare |
| November | rare |
| December | rare |
Grey reef shark
| Month | Likelihood |
|---|---|
| January | occasional |
| February | occasional |
| March | occasional |
| April | occasional |
| May | occasional |
| June | destination closed |
| July | destination closed |
| August | destination closed |
| September | destination closed |
| October | occasional |
| November | occasional |
| December | occasional |
Hawksbill turtle
| Month | Likelihood |
|---|---|
| January | commonly seen |
| February | commonly seen |
| March | commonly seen |
| April | commonly seen |
| May | commonly seen |
| June | destination closed |
| July | destination closed |
| August | destination closed |
| September | destination closed |
| October | commonly seen |
| November | commonly seen |
| December | commonly seen |
Bluespotted ribbontail ray
| Month | Likelihood |
|---|---|
| January | occasional |
| February | occasional |
| March | occasional |
| April | occasional |
| May | occasional |
| June | destination closed |
| July | destination closed |
| August | destination closed |
| September | destination closed |
| October | occasional |
| November | occasional |
| December | occasional |
Nearby alternatives
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Sources & last checked
Checked July 2026
Research is source-backed, but conditions and fees should still be confirmed locally.
View 2 sources and checking notes
- Diving in Koh Surin, Divescover
- Mu Ko Surin National Park, Thai National Parks
Note on the data: Coordinates are approximate; not surveyed dive-site GPS.