1. General Introduction to Phu Long Cave
1.1. Geographical Location and Natural Characteristics
Phu Long Cave, also known as Thien Long Cave, is located in Cat Hai Special Zone, belonging to the Cat Ba archipelago, about 30-35 km from Hai Phong city center, conveniently accessible by cable car or a combination of ferry and road travel. The cave is situated within a limestone mountain massif shaped like a stone turtle facing the sea entrance, surrounded by mangrove forests, natural lakes, and relatively pristine vegetation. The cave area comprises a system of three caves with many unique stalactites; visitors typically travel by boat through a small creek, then walk for about 10-15 minutes to reach the cave entrance.
Phu Long Cave is located in Cat Hai special zone, about 35 km from Hai Phong city center. (Source: Collected)
1.2. Landscape, Geological, and Ecological Value
Phu Long Cave is a typical karst cave, formed from Bac Son limestone sediments dating back about 200 million years, eroded by rainwater rich in CO₂ over a long period. Inside the cave is a system of stalactites, stalagmites, stone bells, and stone columns with diverse shapes, notably a stone pillar about 1.51 m high and cave chambers often referred to by folk imagination as "heavenly palace" or "Buddha hall". The cave space maintains a cool temperature of about 18–22°C, with stable humidity thanks to underground streams, while the surrounding area features a mangrove forest and coastal lake ecosystem, suitable for tourists to visit and learn about geology and ecology.
1.3. Why Phu Long Cave Attracts Tourists
The appeal of Phu Long Cave comes from its natural beauty that retains its original character, less commercialized compared to many other caves in Cat Ba. The journey to reach it by small boat and a short walk through limestone mountains offers a moderate sense of exploration, suitable for nature lovers and those seeking light trekking experiences. Additionally, the harmonious landscape of limestone mountains, lakes, and mangrove forests creates many relaxing photo opportunities, while its proximity to the Cat Ba cable car line allows tourists to easily combine visits into their island exploration itinerary.
2. How to Travel and Experience the Journey to Phu Long Cave
2.1. Traveling from Hai Phong City Center
From Hai Phong city center, tourists can travel by motorbike or car for about 45–60 minutes to the Cat Hai cable car station, then take the Sun World Cat Ba cable car, nearly 4 km long, to Phu Long station (about 15 minutes). From there, continue by island bus or taxi for another 20–30 minutes to Phu Long commune. The total journey time is about 1.5 hours. This is a convenient option, saving time and avoiding ferry waits.
Moving by Sun World Cat Ba cable car is a convenient and quick way to get to the island. (Source: Collected)
2.2. Traveling from Hanoi
Starting from Hanoi, tourists travel along the Hanoi – Hai Phong expressway for a distance of about 130–150 km, taking about 1.5–2 hours to reach the Cat Hai cable car station. Then, the journey continues by Sun World Cat Ba cable car to Phu Long and then travel around the island as instructed above. The total time from Hanoi to Phu Long Cave is about 2.5–3 hours, suitable for a day trip or a short stay in Cat Ba.
Tourists can choose a private car or a bus from Hanoi to Hai Phong with prices ranging from 200,000 - 250,000 VND/person, then continue by cable car. This route is convenient for combining with a visit to Lan Ha Bay or other tourist attractions on the island. Remember to check the cable car operating hours (usually from 8 AM to 6 PM) and bring all vehicle documents if driving into the island for a smooth trip.
3. Ideal Time to Explore Phu Long Cave
The time chosen by many tourists to visit Phu Long Cave is from September to March of the following year, when the weather is cool, with little rain and a pleasant atmosphere. These conditions are favorable for traveling by boat, walking into the cave, and exploring the stalactite space inside. The period from April to June is also a beautiful time, when the surrounding vegetation is lush green, and natural light is good, making it very suitable for photography and sightseeing.
The period from September to March next year is ideal for exploring Phu Long Cave. (Source: Collected)
Conversely, visitors should be more cautious on days with heavy rain or immediately after rain, as the path into the cave and the stone steps are slippery, and the humidity inside the cave is also higher than usual. If the goal is to take photos and enjoy a quiet atmosphere, it is advisable to avoid peak hours. Choosing the right time will help the exploration of Phu Long Cave become safer, more comfortable, and more complete.
4. Outstanding experiences at Phu Long Cave
4.1. Explore the magical stalactite space
Inside Phu Long Cave is a multi-layered system of stalactites formed over millions of years, creating a natural space rich in shapes. The rock formations resemble curtains, stone towers, or stone bells, distributed along the cave's arches and walls. When natural light shines into the cave entrance, the space becomes shimmering, very suitable for geological observation and taking commemorative photos.
Tourists explore the stalactite system at Phu Long Cave. (Source: Collected)
4.2. Admire the lake and surrounding rocky mountains
At the foot of the mountain lies a clear, natural lake, surrounded by limestone mountains, creating a peaceful and harmonious scene. In the morning, the lake's surface clearly reflects the mountain's silhouette and the surrounding vegetation, bringing a sense of relaxation. This is a suitable area to stop for sightseeing, photography, or to organize short, light picnics.
4.3. Light trekking around the cave area
The area around Phu Long Cave has trails and walking paths that are not too steep, suitable for light trekking. Along the way, visitors can observe the forest vegetation, limestone terrain, and the characteristic coastal mountain landscape of Cat Hai. This experience is suitable for groups of friends or families who want to combine light exercise with nature exploration.
5. Experience and notes when visiting Phu Long Cave
When visiting Phu Long Cave, tourists should prepare sports shoes with good grip and lightweight clothing for easy movement on the limestone terrain. It is quite dark inside the cave, so a flashlight or headlamp is a necessary item to observe stalactites and ensure safety when going deeper into the cave chambers. Additionally, it is advisable to bring personal drinking water, a sweat towel, and a fully charged camera to be prepared throughout the exploration journey.
During the visit, tourists should move in groups, avoid splitting up when entering deep areas, and pay attention to mossy, slippery stone steps. It is very important not to touch the stalactites to preserve the natural structure of the cave. At the same time, please adhere to general etiquette rules such as not littering, not carving or drawing on rocks, and maintaining quietness, contributing to the protection of the ecosystem and natural landscape of Phu Long Cave.
Visitors must travel in groups and comply with regulations when visiting Phu Long Cave. (Source: Collection)
6. Suggested Itinerary Combinations for Visiting Phu Long Cave
In the morning, visitors should choose to take the Sun World Cat Ba cable car, nearly 4 km long, from Cat Hai station to Cat Ba island to start the journey gently. With this journey, visitors will have an additional experience of admiring the majestic panoramic view of Lan Ha Bay from above. After descending at Phu Long station, visitors continue to move into Phu Long commune, combining a boat trip through a small creek and a short walk to explore Phu Long Cave , visiting the stalactite space and limestone mountain scenery along the mangrove forest in the cool morning air.
At noon, from Phu Long, visitors travel back to the center of Cat Ba island for lunch and rest. The afternoon is the ideal time to experience sea activities such as taking a boat trip to visit Lan Ha Bay, visiting fishing villages, kayaking, or admiring the limestone mountains on the bay. In the late afternoon, visitors can return to the central beach to swim, relax, and end the day with a BBQ dinner by the sea, enjoying the island's resort atmosphere.
Tourists explore the peaceful Lan Ha Bay by boat. (Source: Collection)
Phu Long Cave offers a balanced experience of nature exploration, light activity, and authentic Cat Ba island beach resort. From the cool stalactite space, the peaceful scenery of limestone mountains and mangrove forests to the journey combining cable car, fishing village, and blue sea, each stage has its own distinct charm that is easy to feel. If tourists are looking for a new destination, not too crowded but rich in experiences, Phu Long Cave is a worthwhile option for a short trip in Hai Phong.
