Cao Vân Reservoir

Discover cities like never before.

Enjoy over self-guided city exploration with our app ‘Explory’. Learn all about the history and discover hidden more than 500.000 hidden gems, that only locals know about. Build custom tours, find nearby places, and start exploring instantly.

“Is this where the dragons descended?” a young voice chirped from the boat, echoing across the serene expanse of Cao Văn Reservoir. The Cao Văn Reservoir isn’t about descending dragons, though. It’s a story of human intervention shaping nature’s canvas, a testament to how a dam can birth a haven for life. In the 1960s, a 30-kilometer dam along the Day River transformed the landscape, giving rise to this sprawling wetland. This wasn’t the intent, but the flooding created an unintentional paradise. This ‘waveless bay’ became a sanctuary, a vital corridor for migratory birds. Cao Văn Reservoir is now the largest submerged nature reserve in Vietnam, a sprawling tapestry of over 3,500 hectares. It’s a vibrant ecosystem teeming with life. Imagine gliding through the tranquil waters on a bamboo boat, the gentle lapping of water against the hull the only sound. Reeds and water lilies brush against your hands as you navigate this watery wonderland. The reserve is a mosaic of habitats, home to 72 bird species, 39 mammal species, and a rich tapestry of plant life. Among these inhabitants is the critically endangered Delacour’s langur, a primate clinging to existence. Cao Văn Reservoir holds the largest population of these rare creatures in Vietnam. The limestone mountains, with names like Cat Scratches (Meo Cao) and Fairy (Co Tien), rise majestically from the water, their reflections shimmering in the mirror-like surface. Beneath the surface, the water is so clear that you can glimpse the algae swaying gently in the current. This clarity, combined with the dramatic scenery, caught the eye of Hollywood filmmakers, who chose Cao Văn Reservoir as a filming location for “Kong: Skull Island.” This serene beauty is far removed from the bustling tourist hubs of Tam Coc and Trang An. Here, tranquility reigns. No vendors or intrusive photographers interrupt the quiet magic. The only sounds are the whispers of nature and the gentle rhythm of paddles dipping into the water.

Learning about Cao Vân Reservoir in Ha Long is only the beginning of your adventure. Explory helps you go further with a powerful digital guide that transforms every walk into an experience. Using our intuitive city guide, you can easily connect stories with locations, creating your own city tour while enjoying Ha Long at your own rhythm.Explory’s goal is to make your trip unforgettable. Our guide combines storytelling with orientation, giving you the chance to uncover the rich layers of Ha Long. Thanks to the integrated audio guide, you can listen to fascinating narratives while exploring the streets. Beyond the well-known attractions, Explory highlights hidden gems and secret corners that make the city truly unique.With the city guide, you’ll gain insights and flexibility. Whether you’re a first-time visitor or a regular traveler, the app offers exploration on your terms. Each curated city tour blends local culture, history, and atmosphere into one seamless experience. The emphasis on exploration ensures you won’t just see Ha Long, but actually connect with it. And because our content reveals hidden gems, you’ll always discover something new.Expand your journey by downloading the Explory App. Explore over 300 cities and more than 500,000 POIs and stories, all accessible from your phone. Whether you need a trusted guide, a flexible audio guide, or a structured city tour, Explory offers everything in one place. Start your adventure today and explore Ha Long like never before with Explory.

More Places in Ha Long

Abandoned building

An unfinished symphony in concrete. That is the Abandoned building in Ha Long. Many Vietnamese citizens and architecture experts have

Explore

Woodstock Beachcamp

Craving a place where music and nature collide? Here at Woodstock Beach Camp, you are not just visiting, you’re joining

Explore

Phat dat

Whispers of ambition fill the air. This is Phat Dat. Right here in Ha Long. We stand before a company

Explore

du lịch

A thousand emerald isles pierce the azure sky. Welcome to Ha Long Bay a breathtaking spectacle. This UNESCO World Heritage

Explore