About Cau Hai Lagoon
Cau Hai Lagoon is the southernmost part of the Tam Giang–Cau Hai lagoon system in Phu Loc District, Hue City, central Vietnam. It is the largest brackish-water lagoon system in Southeast Asia, covering about 112 sq km of the total 216 sq km system. Notable for its extensive aquaculture, fishing villages, stilt houses and scenic backdrop of Bach Ma mountains, it is a key ecological and livelihood area near Lang Co.
Visitors guide
Visitors can expect a vast, shallow brackish lagoon with calm waters, fishing corrals, aquaculture farms and small fishing villages with stilt houses along the shore. The landscape is open with views toward Bach Ma mountains and the sea. Visitors can explore the shoreline, take local boat trips across the lagoon, observe daily fishing activities, photograph sunrise and sunset, and sample fresh seafood at local eateries.
Key highlights
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Southernmost and largest section of the Tam Giang–Cau Hai lagoon system, the largest brackish lagoon system in Southeast Asia
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Traditional fishing villages with stilt houses, fish corrals and aquaculture farms
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Scenic boat trips at sunrise and sunset with views of Bach Ma mountain range
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Rich birdlife and aquatic ecosystem suitable for nature observation
- 05
Fresh seafood and local fishing culture experience
History of Cau Hai Lagoon
Cau Hai Lagoon forms the southern part of the Tam Giang–Cau Hai lagoon system, a long-established natural brackish water body that has supported fishing and aquaculture communities for centuries. It has historically served as an important fishery and waterway for coastal settlements in Phu Loc and the Hue region.
Culture & Context
The lagoon sustains traditional fishing culture with stilt-house villages, fixed fishing traps, net fishing and aquaculture. Daily life, local cuisine and markets are closely tied to the lagoon's seafood resources, reflecting the livelihood and community traditions of Phu Loc's coastal population.
Route
| By air |
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