1. Introduction of Trung Trang Cave
Trung Trane Cave located in Trung Trang Valley, about 15 kilometers northwest of Cat Ba Town, Trung Trang Cave is one of the most impressive natural attractions in Cat Ba National Park. The Trung Trang cave was discovered in 1938 by Vietnamese and French archaeologists and is estimated to be around 6 million years old, based on the formation of its stalactites and stalagmites.
Stretching for about 300 meters through the mountain, Trung Trang Cave has a spacious interior that can accommodate hundreds of visitors at a time. The sparkling limestone blocks create unique shapes, resembling animals, humans and even mythical characters, all created by nature over millions of years. Locals often call it Bat Cave because of the large bat colonies inside. During the war, it also served as a naval communication base, earning the name Naval Cave. These multiple identities reflect both the cave’s natural biodiversity and its historical significance to the local community. The Trung Trang Cave ticket is 40,000 VND/person, providing an affordable and easy experience for all visitors to explore Cat Ba Island. This reasonable ticket price allows visitors to easily admire the majestic natural beauty and historical charm of the cave in Cat Ba National Park. 2. The journey to explore Trung Trang Cave
The journey to explore Trung Trang Cave begins the moment visitors step into its cool, mysterious entrance nestled in Trung Trang Valley, within Cat Ba National Park. At the cave’s gateway, a striking statue of a maiden rests gracefully against the stone wall, believed by locals to represent Lady Trung Trang, the guardian spirit of the cave. Above the entrance, the carved image of a Python, said to be her divine protector, silently watches over travelers before they embark on their underground adventure. As you enter deeper into Trung Trang Cave, dim lights reveal a mesmerizing world of stalactites and stalagmites that have formed over 6 million years. Just 20 meters inside, visitors are captivated by what local legend calls Lady Trung Trang’s treasure chamber, where glimmering limestone pillars resemble columns of gold, silver, and diamond. Nearby stands a stunning Golden Lion formation, believed to be the sacred guardian of this hidden trove. Moving further, Trung Trang Cave expands into a maze of grand chambers adorned with intricate rock formations. One of the highlights is a natural map carved by nature that mirrors the outline of Vietnam and the Cat Ba Archipelago. Other fascinating sights include mummy shaped stones, a pond once home to crocodiles, and a musical rock area, where gently tapping the stones produces resonant sounds, a natural symphony echoing through the cave. 
Deeper still, visitors encounter two distinct pathways, one believed to lead to Heaven, the other to Hell, each offering a different sense of mystery and wonder. In one vast chamber, ancient footprints and handprints are said to mark Lady Trung Trang’s martial training ground, while nearby stands a rock shaped like the Cat Ba langur, a rare species unique to this island. As travelers make their way back toward the entrance, they’ll find altars and statues dedicated to Lady Trung Trang, surrounded by elephant and serpent guardians that enhance the cave’s sacred ambiance. Outside, a mermaid statue bows to travelers, symbolizing gratitude for their visit. 
Beyond its mystical formations, Trung Trang Cave also features a vibrant ecosystem, home to countless species of butterflies, vines, and tropical flora. The surrounding forest, covered in ancient trees and lush greenery, provides a peaceful space to rest after the underground journey. With its mythical legends, fascinating geology and ecological richness, exploring Trung Trang Cave is like stepping into a living masterpiece, a hidden paradise created by nature and time, waiting to be discovered. 3. Cat Ba Caves
Besides Trung Trang Cave, Cat Ba Island also has many other beautiful caves, showcasing the natural beauty and geological diversity of the island. Each cave offers unique experiences for both explorers and nature lovers.3.1. Hospital Cave (Hang Quan Y)
Located about 10 km from Cat Ba town, Hospital Cave is a historical relic built during the Vietnam War. Hidden deep in the limestone mountains, the cave has 17 rooms, spread over three floors, and used to be a hospital and a secret military base. Today, it is an attractive stop for history enthusiasts exploring Cat Ba Island.
3.2. Hoa Cuong Cave
Hoa Cuong Cave impresses visitors with its sparkling stalactites and stalagmites that shimmer like gemstones under the light. The cave’s name, meaning “Diamond Cave”, comes from its dazzling interior, making it a favorite for photographers and nature lovers seeking peaceful beauty.
3.3. Thien Long Cave
Thien Long Cave, discovered by locals in 2000, is about a 40-minute drive from Cat Ba town. The small cave entrance (4 meters wide, 6 meters high) leads to winding paths that resemble a natural maze. Inside, Thien Long Cave has three chambers filled with beautiful stalactites and stalagmites formed millions of years ago, providing a mysterious and captivating experience for visitors exploring Cat Ba caves.
4. Tips for visiting Trung Trang Cave
To make the most of your journey to Trung Trang Cave, here are some useful tips:- Wear comfortable shoes: The pathways inside Trung Trang Cave can be slippery and uneven due to moisture, so sturdy footwear is essential.
- Bring a flashlight: Although the cave is partly illuminated, having your own light helps you better explore the mysterious corners of Trung Trang Cave.
- Visit during the dry season: The best time to explore Trung Trang Cave is from October to April, when the weather is cool and less humid.
- Respect the cave environment: Avoid touching stalactites and stalagmites to help preserve the natural beauty of Trung Trang Cave.
- Combine your visit: Plan to visit nearby attractions such as Cat Ba National Park, Trung Trang Valley or Cat Ba Caves for a full adventure experience.
CONCLUSION
Exploring Trung Trang Cave is truly an unforgettable experience, offering visitors a glimpse into the mystical beauty and rich legends of Cat Ba Island. With its majestic stalactites, fascinating history and peaceful scenery, Trung Trang Cave emerges as a natural masterpiece, reflecting the harmony between nature and culture.
If you’re seeking a responsible and meaningful way to discover this wonder, travel with YESD Travel – a social enterprise promoting sustainability and community. With YESD, your journey to Cat Ba tour won’t just be about sightseeing, but also about supporting local communities and preserving the natural beauty of Cat Ba for future generations.