Hon Tre Lon

On the western side of the archipelago, so it works as a shelter option in northeasterly wind. Shallow reef sloping to about 25m.

Depth

4–25m

Current

Mild

Diver level

Open water

Entry

Boat

Unique features

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

Sources & last checked

Checked August 2026

This is a researched draft, not yet human-verified. The seasonality and logistics are drawn from the sources below — confirm specifics (permits, fees, closures) with an operator before you book.

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.