Dive site · access from Con Dao Archipelago
Hon Tre Lon
On the western side of the archipelago, so it works as a shelter option in northeasterly wind.
- Depth
- 4–25m
- Current
- Mild
- Minimum level
- Open water
- Access
- Boat
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The case for it
Why dive here
- Western-side island with a 4–25m depth range suiting both divers and snorkellers
- One of the five beaches recording over 150 turtle nesting arrivals a year
- Sheltered when the northeast wind is up
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 Con Dao Archipelago
Best overall months: Mar, Apr, May, Jun. Check the destination planner for operating season, wildlife and other matching sites.
Wildlife
Seen around Con Dao Archipelago
rareoccasionalcommonly seenpeak seasondestination closed
These are destination-level records, not confirmed sightings at Hon Tre Lon.
Bigeye trevally
| Month | Likelihood |
|---|---|
| January | destination closed |
| February | destination closed |
| March | occasional |
| April | occasional |
| May | occasional |
| June | occasional |
| July | occasional |
| August | occasional |
| September | occasional |
| October | destination closed |
| November | destination closed |
| December | destination closed |
Dugong
| Month | Likelihood |
|---|---|
| January | destination closed |
| February | destination closed |
| March | not seen |
| April | not seen |
| May | not seen |
| June | not seen |
| July | not seen |
| August | not seen |
| September | not seen |
| October | destination closed |
| November | destination closed |
| December | destination closed |
Hawksbill turtle
| Month | Likelihood |
|---|---|
| January | destination closed |
| February | destination closed |
| March | occasional |
| April | occasional |
| May | occasional |
| June | occasional |
| July | occasional |
| August | occasional |
| September | occasional |
| October | destination closed |
| November | destination closed |
| December | destination closed |
Bluespotted ribbontail ray
| Month | Likelihood |
|---|---|
| January | destination closed |
| February | destination closed |
| March | occasional |
| April | occasional |
| May | occasional |
| June | occasional |
| July | occasional |
| August | occasional |
| September | occasional |
| October | destination closed |
| November | destination closed |
| December | destination closed |
Giant moray
| Month | Likelihood |
|---|---|
| January | destination closed |
| February | destination closed |
| March | occasional |
| April | occasional |
| May | occasional |
| June | occasional |
| July | occasional |
| August | occasional |
| September | occasional |
| October | destination closed |
| November | destination closed |
| December | destination closed |
Nearby alternatives
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Sources & last checked
Checked August 2026
Research is source-backed, but conditions and fees should still be confirmed locally.
View 2 sources and checking notes
- Sea turtle nesting season starts at Con Dao National Park, VietnamPlus (Vietnam News Agency)
- Con Dao diving guide, Underwater Asia
Note on the data: Coordinates are approximate; not surveyed dive-site GPS.