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Dong Lam Grassland

A flooded grass basin in Lang Son where horses graze knee-deep in water for half the year.

Updated 30 August 2026

Typegrassland
WhereLang Son Province
Nearest cityHuu Lung about 15 km; Hanoi about 110 km
Best seasonMay to September when flooded; year round for the grass
Time to allowA full day
Getting thereRoads to Huu Lung district off national road 1; a track to the basin, rough in wet weather
EntryFree; camping informal

Dong Lam is a basin of open grass among karst hills in Huu Lung district, and its character depends on the season: for much of the wet months a shallow lake forms across part of the floor, so the grass stands in water and the horses and cattle that graze there wade through it, which is the image the place is known for. When the water drains through the limestone the basin is dry grass and the same animals graze it normally. It has become a camping destination for Hanoi weekenders, informally - there are no facilities of any kind and the ground is common grazing.

Highlights

  • Grass standing in shallow water - through much of the wet season.
  • Horses and cattle wading - the image the basin is known for.
  • Karst hills around the floor - enclosing the basin.
  • Dry grass when it drains - the other half of the year.

When to go

May to September for the flooding; year round for the grass. A full day.

Before you go

There are no facilities at all - no toilets, no water, no shelter. The track in is difficult in wet weather. Camping has left litter and the ground is grazing land, not a park. Sun and rain are both unmitigated.

Nearby

Huu Lung is south; Lang Son is north-east.

What to pack for Dong Lam Grassland

Chosen from what this place is for. Tap a kit for the full checklist.

  • Broken-in walking shoes or boots - Grip and ankle support matter more than looks; never hike in brand-new boots. Find on Amazon
  • Shelter suited to the place - Tent, tarp or hut booking - match it to the terrain and rules. Find on Amazon
  • Layers + a waterproof shell - Mountain weather turns fast; a packable rain jacket saves the day. Find on Amazon
  • A warm sleeping bag + mat - Rated a little colder than you expect the nights to be. Find on Amazon

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Plan your trip

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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.

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