Côn Đảo · Vietnam · Reef
Hon Tre
Western Con Dao reef spanning 4 to 25 m
Area photo: Tycho · CC BY-SA 3.0
Hon Tre Lon, also called Tre Lon, is an island on the western side of the Con Dao archipelago. The dive covers depths from 4 m to 25 m, a range that works for both scuba diving and snorkelling. Divers reach it by day boat on a scuba tour that includes an instructor and equipment.
Also known as Hon Tre Lon, Tre Lon, Hòn Tre Lớn, Hòn Tre.
Where it is and how deep
8.7080° N, 106.5428° EApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.
The dive
The site lies off the western side of Con Dao and covers depths from 4 m to 25 m. The shallow part of the reef is within reach of snorkellers, while scuba divers work down to the deeper end of the range.
Marine life and season
The sources we used don't single out particular species here.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Off-season | Fair | Fair | Good | Good | Prime | Prime | Prime | Good | Fair | Off-season | Off-season |
Season follows Côn Đảo: Northeast monsoon swell limits diving November-January; calmest seas and best visibility run June-August.
Sources
- Con Dao diving: A must-add to every diver's bucket list — VinWonders
- Explore Stunning 5 Con Dao Diving Spots — Amadive Con Dao Dive Center
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