Compared to many other coastal localities, Hue’s sea possesses a distinctly unique beauty, gentle and captivating in its simplicity and softness. In recent years, that beauty has become even more alluring thanks to the new coastal road and the recently completed bridge spanning the Thuan An estuary. From there, visitors coming to Hue can begin their journey from the clear blue waters of Lang Co Bay, travel along breezy coastal roads through Vinh Thanh, Thuan An, and Hai Duong, before continuing toward the peaceful seaside area of Quang Dien.

Tam Giang - Cau Hai Lagoon system in Hue City is the largest brackish water ecosystem in Southeast Asia, stretching 68 km, covering a total water surface area of approximately 216 km2. The area is renowned for its poetic sunsets, rich biodiversity, and serves as a popular destination for eco-tourism, photography, and enjoying local seafood specialties.

After the historic flooding season in late October 2025, while various areas were still deeply submerged in water, thousands of workers had to temporarily stop working, businesses in Hue City promptly stepped in to share the burden, from providing cash support, salary advances, and safe accommodations to help workers overcome difficulties and quickly stabilize production.

Spanning a total water surface area of more than 210 km², Tam Giang - Cau Hai lagoon system,consisting of three main lagoons: Tam Giang, Thuy Tu, and Cau Hai, is often praised as a natural masterpiece bestowed upon Hue. The Tam Giang - Cau Hai lagoon system connects to the East Sea via the Thuan An inlet (Tam Giang lagoon) and the Tu Hien inlet (Cau Hai lagoon). It is the largest brackish lagoon system in Vietnam as well as all of Southeast Asia with an incredibly rich and diverse ecosystem.

On the 10-acre field of red chiem rice (a traditional red rice grown in brackish lowlands of Hue City, sown by April and harvested by July), each planting season requires 40 to 50 hired laborers, and the harvest stretches over several days. Left untended and unfertilized, the rice grows naturally under the generous sun and rain. Some call it “heaven’s rice” — a variety grown from the grace of Tam Giang’s waters.

For those living near the Tam Giang Lagoon, it is common to experience several floods each year. While flood season provokes anxieties over the safety of lives and property, it also allows fishermen to increase their income because the rising water brings an abundance of economically valuable aquatic species.