Phu Long Commune, Cat Ba Island – the Pristine Mangrove Forest

Hidden at the western gateway of Cat Ba Island, Phu Long Commune is a peaceful escape where mangrove forests, limestone caves, and coastal life blend in harmony. Explore its untouched beauty through kayaking, local eco-tours, and cultural experiences that reveal the true spirit of Cat Ba. Start your green journey with Quang Thang Cat Ba Travel now!

General Introduction to Phu Long Commune

If you think Cat Ba Island (now in Cat Hai Special Zone) is all about the bustling Lan Ha Bay or turquoise beaches, let me show you another side — a peaceful, untouched corner called Phu Long Commune.
Located at the western gateway of Cat Ba, this hidden gem still whispers the rhythm of the sea and the wind. Here, mangrove forests breathe with the tides, and fishermen live in harmony with nature’s pulse.

Unlike touristy areas, Phu Long remains simple and soulful — a rare place where time slows down and life flows gently like the water weaving through the estuaries.
It’s not just a destination; it’s an authentic coastal experience that captures the very essence of island life.

Geographical Location & Administrative Boundaries

Phu Long Commune lies in Cat Hai District, Hai Phong City, marking the western edge of Cat Ba Island.
Three sides — north, west, and south — open to the vast Gulf of Tonkin, while the east borders Gia Luan and Hien Hao communes.

From the town center, travelers can reach Phu Long by:

• The cross-island road, winding through green hills;
• A Got – Cai Vieng ferry journey, where sea breezes fill the air; or
• The Cat Hai – Phu Long cable car, one of Vietnam’s most scenic routes, gliding over turquoise water and mangrove canopies.
  

This strategic location makes Phu Long both a tranquil escape and a gateway for ecotourism in the Cat Ba archipelago — connecting the mainland’s rhythm to the serenity of island life.

Area, Population & Population Density

Spanning 48.15 km², Phu Long Commune is blessed with extensive lagoons, tidal flats, and mangrove forests — one of the largest wetland ecosystems in northern Vietnam.
Its population of about 1,954 residents creates a quiet, close-knit community, with an average density of 41 people per km² — far lower than neighboring communes.

This low density allows nature to thrive freely. Visitors often describe Phu Long as a “green lung” of Cat Ba, where the air is crisp, and mornings begin with the sound of waves and birdsong.

Here, the balance between people and nature is not just an ideal — it’s a way of life.

Hamlets / Sub-zones & Coastal Wetlands, Islands & Estuaries

Phu Long is divided into four hamlets — Nam, Bac, Ngoai, and Ao Coi — each surrounded by tranquil lagoons and lush mangrove belts.
Every corner carries a story: fishermen casting nets at dawn, families harvesting clams at low tide, children laughing along wooden bridges.

The wetlands of Cai Vieng 1, Cai Vieng 2, and the gentle Phu Long River nourish the ecosystem, creating a thriving habitat for crabs, fish, and seabirds.
Offshore, you’ll find tiny islands like Hon Con Cho (Dog Islet), Hon Con Rua (Turtle Islet), and Hon Ap Da, perfect for photography, kayaking, or simply watching the sun fade into the sea.

With its emerald mangroves, shimmering lagoons, and warm-hearted locals, Phu Long Commune embodies the soul of Cat Ba Island — a place where authenticity still lives and nature tells its timeless story.

Ecosystem & Natural Features of Phu Long Commune

When you first set foot in Phu Long Commune, you’ll feel as if nature itself is greeting you. The air is thick with the scent of salt and mangrove blossoms, the sound of rustling leaves mingles with the hum of distant waves. This tranquil coastal world is often called the “green lung” of Cat Ba Island — a living masterpiece where biodiversity thrives and life flows at the rhythm of the tides.

Phu Long Mangrove Forest — Characteristics, Flora & Fauna

The Phu Long Mangrove Forest is one of the most well-preserved ecosystems in northern Vietnam, recognized as a symbol of harmony between humans and the sea. The forest is home to typical brackish-water plants such as mangroves, nipa palms, and Sonneratia trees, whose tangled roots dig deep into the soft mud.
These roots not only stabilize the soil but also filter the water and form natural shelters for marine life. Beneath the canopy, you might spot white egrets gliding gracefully, kingfishers diving for prey, or tiny fiddler crabs darting across the mudflats.

Beneath the brown water lies a vibrant ecosystem of fish, clams, and oysters — each playing a vital role in maintaining ecological balance. Many researchers have described Phu Long Commune as a “living laboratory,” where nature still operates according to its timeless rules, untouched and pure.

Environmental Role & Coastal Protection

Beyond its beauty, the mangrove forest serves as a natural shield protecting Cat Ba’s coastline. Its dense vegetation reduces wave energy, prevents coastal erosion, and absorbs carbon dioxide — a crucial contribution to mitigating climate change.

These mangroves also nurture countless aquatic species such as shrimps, crabs, and blood cockles, providing a sustainable livelihood for local residents.
Through eco-friendly aquaculture and community-based tourism, the people of Phu Long Commune have learned to live in balance with nature — earning income while preserving their coastal heritage.

For many travelers, exploring these mangroves by small wooden boats or kayaks is more than a sightseeing trip — it’s a lesson in how humans and the environment can coexist in quiet harmony.

Challenges — Erosion, Climate Change & Protective Infrastructure

Yet even such a resilient ecosystem faces challenges. Rising sea levels, stronger storms, and saltwater intrusion have begun to reshape parts of the coastline. Each year, the forest loses small areas to erosion, while protective dikes and embankments require constant maintenance.

Recognizing the forest’s importance, local authorities in Hai Phong have launched reforestation projects, eco-friendly embankment systems, and community awareness programs to safeguard these wetlands.
Today, villagers act as forest guardians, planting young mangroves and monitoring water quality — protecting the same natural shield that protects them.

In essence, the mangrove forest of Phu Long Commune is far more than a scenic wonder. It is a symbol of resilience, where nature and humanity intertwine, each protecting and sustaining the other. Amid the fast pace of modern life, Phu Long remains a reminder that peace and prosperity begin with respect for the land and sea.

Phu Long Cave (Thien Long Cave) & Geological Value

Hidden deep within the lush mangrove forest of Phu Long Commune, Thien Long Cave (also known as Phu Long Cave) is one of Cat Ba Island’s most mysterious natural wonders. It’s not just a cave — it’s a journey through time, where geology, history, and legend converge beneath layers of stone and silence.

Location, Access & Path into the Cave

The cave lies quietly in the heart of the mangroves, accessible only by a small wooden boat that glides through peaceful waterways lined with nipa palms and mangrove roots.
From the local pier, visitors travel by boat for about 15 minutes before continuing on foot along a dry, shaded trail that winds gently through the forest.

The best time to visit is during the dry season (October to April), when the water is clear, tides are stable, and the air is cool — creating ideal conditions for exploration. As you approach the cave entrance, surrounded by birdsong and the whisper of the wind, you’ll feel an almost sacred calm, as though nature itself is guarding an ancient secret.

Cave Structure, Stalactites/Stalagmites & Internal Beauty

Inside, Thien Long Cave reveals a world shaped over millennia. The interior extends across multiple levels, forming natural chambers connected by winding passages.
Thousands of stalactites and stalagmites sparkle under torchlight, their crystalline textures resembling frozen waterfalls or celestial constellations.

Every echo within the cave resonates softly, as if the earth itself is breathing. The humidity and warmth create a serene atmosphere, offering a rare opportunity to feel the geological “heartbeat” of Cat Ba’s limestone landscape — raw, powerful, and profoundly alive.

Historical Traces, Bone Discoveries & Local Legends

Beyond its geological allure, the cave carries deep archaeological and cultural significance. Local records mention the discovery of ancient human bones and tools near the entrance, suggesting that this area once sheltered early inhabitants thousands of years ago.

The people of Phu Long Commune also tell tales of Thien Long, the “Heavenly Dragon” believed to protect fishermen and the surrounding lands. Many still offer small tributes before entering the cave, honoring the spirits of the sea and mountains.

These stories add a layer of mystique — transforming your visit from a simple exploration into a spiritual journey through nature, history, and local belief.

In short, Thien Long Cave stands as both a geological masterpiece and a cultural relic — a testament to the resilience of nature and the spirit of Cat Ba’s people. For travelers seeking a deeper connection beyond the beaches, this is where the island truly reveals its soul.

Ecotourism Experience in Phu Long Commune

If you’re searching for a place where nature, culture, and community coexist in perfect balance, Phu Long Commune is your answer.
Here, the rhythm of life moves with the tides — quiet, slow, and deeply human. Visitors come not just to admire the scenery, but to live a day like a local, exploring the mangrove forests, tasting fresh seafood, and discovering a part of Cat Ba Island that few ever reach.

Half-Day Tour Exploring the Mangrove Forest

A half-day tour in Phu Long Commune is short yet unforgettable. Picture yourself sitting on a small wooden sampan, gliding through calm waterways shaded by lush mangrove canopies. The sun glints off the wet mud, where tiny crabs scurry and herons patiently hunt.

Guided by local fishermen, you’ll learn how to dig for clams, catch small crabs, or simply enjoy the serene stillness that only a mangrove forest can offer. This intimate journey is safe, authentic, and sustainable, allowing you to connect with nature while supporting the local community.

Full-Day Tour – Mangrove + Phu Long Cave Combination

For those who crave a deeper experience, the full-day itinerary combines the tranquility of the mangroves with the mystery of Thien Long (Phu Long) Cave.
In the morning, you’ll cruise through the emerald forest canals. By noon, enjoy a peaceful picnic by a sheltered lagoon, and in the afternoon, hike 10–15 minutes into the limestone heart of Cat Ba to admire the cave’s glittering stalactites.

This journey beautifully balances ecology, geology, and culture — perfect for travelers who seek both exploration and relaxation.

Popular Activities: Kayaking, Shell Collecting, SUP, Swimming & Photo Spots

Adventure lovers can choose from a variety of outdoor experiences:

• Kayaking or SUP through quiet “water alleys” surrounded by mangrove roots.
• Shell collecting and clam digging with villagers, followed by a quick seafood cooking session.
• Swimming in calm, wind-sheltered bays and capturing stunning photos near cave entrances and tidal flats.

Each moment here feels genuine — a combination of simplicity, beauty, and connection to nature that’s increasingly rare in modern travel.

Community Tourism & Role of Local Residents

What makes Phu Long Commune truly special is its people. Every tour is operated by locals — the same families who have lived by the mangroves for generations.
They row the boats, prepare homestyle meals, and share stories of the sea with heartfelt warmth.

This community-based tourism model not only creates sustainable livelihoods but also protects the mangrove ecosystem and preserves the maritime culture that defines Cat Ba’s spirit.
When you travel here, you don’t just visit — you become part of the story that keeps Phu Long alive.

Frequently Asked Questions (FAQs) about Phu Long Commune

1. Where is Phu Long Commune and how do I get there?

Phu Long Commune lies at the western gateway of Cat Ba Island, under Cat Hai District, Hai Phong City.
It’s the first area you’ll reach after crossing either the Got – Cai Vieng ferry or the Cat Hai – Phu Long cable car — both scenic routes offering breathtaking sea views.

From Cat Ba Town, the commune is just a 20–25-minute drive via a well-paved coastal road. You can easily travel by car, motorbike, or even hire a local boat to explore the mangroves and nearby fishing villages.
The road signs are clear, and the journey itself is a delightful prelude to the natural beauty that awaits.

2. What makes the Phu Long mangrove forest special?

Spanning nearly 700 hectares, the Phu Long mangrove forest is known as the “green lung” of Cat Ba Island — the largest mangrove ecosystem in northern Vietnam.
Visitors can paddle through narrow waterways under green canopies, watch flocks of egrets soar above, or join locals in clam digging and crab catching.

This biodiverse environment hosts unique brackish-water species like mangrove apple (Sonneratia), Rhizophora, Avicennia, and Nipa palms, along with rare aquatic life.
It’s an ideal destination for travelers passionate about eco-tourism, photography, and wildlife observation.

3. Phu Long Cave – When to visit & how to get there?

Also called Thien Long Cave, this limestone marvel hides deep within the mangrove forest of Phu Long Commune.
To reach it, you’ll first take a small wooden boat through tranquil canals, then walk 10–15 minutes along a shaded forest path.

The best time to visit is from October to April, when the weather is dry and the cave floor is easy to access.
Inside, thousands of shimmering stalactites and stalagmites illuminate under your flashlight, creating a truly otherworldly scene — one that feels straight out of a legend.

4. What is the current tour price for visiting Phu Long Commune?

Tours typically depart daily from Cat Ba Town or Cai Vieng Pier and can be conveniently booked through local operators like Quang Thang Cat Ba Travel, ensuring flexible schedules and English-speaking guides.

5. Is it advisable to invest in real estate in Phu Long Commune?

With its strategic location connecting the mainland to central Cat Ba and proximity to major infrastructure such as the cable car and ferry terminals, Phu Long Commune has become a rising investment hotspot.

The area is part of the Cat Ba – Dinh Vu – Hai Phong development belt, with long-term plans focused on eco-tourism and green infrastructure.
However, investors should adopt a sustainable, long-term approach, as the government prioritizes environmental preservation over rapid construction.

6. What is the best time of year to visit Phu Long Commune?

The most pleasant months are from October to April, when temperatures are mild, skies are clear, and waterways are calm — perfect for boating, kayaking, and photography.
If you prefer a tropical atmosphere, May to August offers lush scenery and opportunities to join locals in clam digging and early-morning mangrove trips.

Avoid the stormy season (July to September) when tides are high and forest trails can get slippery.

Final Tip from Your Local Guide:
Exploring Phu Long Commune means more than sightseeing — it’s about experiencing the harmony between humans and nature. Whether you’re a nature lover, culture enthusiast, or investor, this peaceful corner of Cat Ba invites you to slow down, breathe deeply, and feel the authentic rhythm of island life.

A journey to Phu Long Commune, Cat Ba Island is more than an adventure — it’s a chance to reconnect with nature and experience the authentic life of a coastal village. From vast mangrove forests to the mystical Thien Long Cave, every corner of Phu Long tells a story of harmony between people and the sea.

If you’re planning your next eco-trip, don’t miss the diverse experiences offered by Quang Thang Cat Ba Travel — your trusted local guide to explore the hidden gems of Cat Ba.

Discover more incredible tours here:

• Lan Ha Bay Tour from Hanoi – A full-day cruise from Hanoi through breathtaking karst landscapes.
• Ha Long Bay Tour from Cat Ba – Explore the UNESCO heritage bay starting right from Cat Ba Island.
• Lan Ha Bay Half-Day Tour – Perfect for those short on time but craving a taste of paradise.
• Hanoi to Cat Ba Bus – Reliable transfers connecting the capital to the island.
• Lan Ha Bay 2 Days 1 Night Cruise – Sleep under the stars aboard a luxury cruise.
• Lan Ha Bay Plankton Tour – Witness magical glowing waters at night.
• Ninh Binh to Cat Ba Bus – Smooth travel between two top destinations.
• Cat Ba 3 Days 2 Nights Tour – A complete island experience for true explorers.

Start your journey today at https://quangthangcatba.com/ and let Quang Thang Cat Ba bring you closer to the natural heart of Vietnam’s most beautiful island.