1. Tuyet tinh coc Hai Phong – The unique blue lake in the heart of Thuy Nguyen

Hai Phong's Solitude Valley has beautiful scenery. (Source: Collected)
Hai Phong's Solitude Valley (Tuyet Tinh Coc Hai Phong) , with its beautiful turquoise water amidst the limestone mountains of Trai Son, is the emerging "green gem" of Thuy Nguyen. In 2025, this place will become an ideal destination for those who love wild nature, want to enjoy a peaceful space, and capture unique, stunning photos.
1.1. Overview of Hai Phong's Solitude Valley
Located in Ninh Son commune, Thuy Nguyen city, Hai Phong's Solitude Valley (Tuyet Tinh Coc Hai Phong) is likened to a "green gem" in the heart of the Port City. It is a unique artificial lake, surrounded by the majestic Trai Son limestone mountain range, about 30 km from the city center. With an area of over 20 hectares and a depth of 30-40m, the lake stands out with its captivating jade green color, creating a scene like a fairyland.
Upon arriving at Hai Phong's Solitude Valley (Tuyet Tinh Coc Hai Phong) , visitors will clearly feel the peaceful, fresh atmosphere, completely separate from the hustle and bustle of the city. This place offers absolute relaxation, with serene mountains reflected on the calm lake surface, creating a natural picture that is both wild and poetic. The harmonious blend of water and rock has made this place an ideal check-in spot for young people and art photography enthusiasts.
Especially, as 2025 approaches, Hai Phong's Solitude Valley (Tuyet Tinh Coc Hai Phong) has become even more famous as a series of stunning photos have been widely shared on social media. The turquoise water and majestic rocky mountain scenery have helped this location quickly become a "new tourism phenomenon" of Hai Phong, attracting a large number of domestic and international tourists to explore and experience.
1.2. Origin and formation of Hai Phong's Solitude Valley
The formation process of Hai Phong's Solitude Valley (Tuyet Tinh Coc Hai Phong) began between 2011 and 2014, when the area at the foot of Trai Son mountain (An Son commune, former Thuy Nguyen) was a site for limestone quarrying for cement and construction materials production. After many years of operation, the quarrying process created deep pits scattered within the mountains.
When quarrying ended, rainwater and groundwater gradually accumulated in these pits, forming a large artificial lake. Initially, the water surface was reddish-brown due to high natural mineral content. However, over time, under the influence of chemical reactions between limestone and residual compounds from explosives, the water color gradually turned into a vibrant jade green, creating the characteristic mystical beauty of the Solitude Valley today.
Compared to the famous Solitude Valleys in Lam Dong or Ninh Binh, the lake in Hai Phong possesses its own unique charm thanks to the delicate blend of the clear blue water, the white-grey of the limestone mountains, and the clear sky reflected on the surface. Many visitors consider it one of the most unique and impressive landscapes in the North, offering an experience that is both wild and poetic for nature lovers and explorers.
1.3. Meaning of the name "Tuyet Tinh Coc" and cultural value
The name Tuyet Tinh Coc is inspired by the famous wuxia novels of writer Kim Dung, especially the work "The Return of the Condor Heroes." The phrase evokes the image of a secluded, peaceful valley, holding deep and emotional love stories, imbued with the mystical colors of the martial arts world.
Not just a tourist destination, the name Hai Phong's Solitude Valley (Tuyet Tinh Coc Hai Phong) also creates a strong ripple effect on social media. The combination of the actual beauty of the clear blue lake and the romantic poeticism from Kim Dung's literature has made this place an attractive "virtual photo spot," attracting thousands of searches, shares, and check-ins each year.
Besides its scenic value, Hai Phong's Solitude Valley (Tuyet Tinh Coc Hai Phong) also carries special cultural and economic significance. The development of tourism in this area not only creates jobs for local residents but also contributes to promoting Hai Phong's tourism image to domestic and international visitors, affirming the position of the port city on the Northern tourism map.
2. Guide to traveling to Hai Phong's Solitude Valley

Tuyet Tinh Coc Hai Phong is located in Ninh Son commune, Thuy Nguyen city. (Source: Collected)
To explore Tuyet Tinh Coc Hai Phong, understanding the location and travel route is a key factor for a smooth and safe trip. In 2025, visitors can choose motorbikes, private cars, or ride-hailing taxis, combined with electronic maps and guidance from locals to easily access the "green gem" hidden amidst the Trai Son limestone mountains.
2.1. Where is Tuyet Tinh Coc Hai Phong?
Tuyet Tinh Coc Hai Phong is located in Ninh Son commune, Thuy Nguyen city, within the famous Trai Son limestone mountain range. This spot is about 30 km from Hai Phong city center, equivalent to a 50–60 minute journey by motorbike or private car, making it very convenient for short trips or weekend explorations.
From the city center, visitors depart via Binh Bridge, then follow National Highway 10 towards An Tien Water Plant. From here, turn onto Provincial Road 359 to reach An Son commune. Upon seeing the sign for Hoa Phat Cement Plant, continue a bit further to reach the Trai Son quarry area – where Tuyet Tinh Coc Hai Phong is hidden amidst majestic nature.
To easily orient yourself and avoid getting lost, you can remember some important landmarks along the route such as Binh Bridge, Provincial Road 359, Hoa Phat company, Hai Phong Cement Plant, An Son Commune People's Committee, and An Son gas station. These are all familiar locations that help visitors easily determine the route when visiting Tuyet Tinh Coc Hai Phong – one of the most beautiful natural check-in spots in the Port City today.
2.2. Convenient Transportation Methods in 2026
To reach Tuyet Tinh Coc Hai Phong conveniently and safely, choosing the right mode of transport is important. In 2025, motorbikes and private cars are considered ideal choices, allowing visitors to control their time and easily enjoy the entire journey exploring the Trai Son limestone mountain area.
Motorbikes and private cars are the two most suitable means of transport to get to Tuyet Tinh Coc Hai Phong. As this area has many small, winding roads and the bus service is not yet well-developed, using personal vehicles will give you control over your time and make it easy to stop or ask locals for directions when needed.
If you enjoy exploring and sightseeing along the way, a motorbike is an ideal choice due to its flexibility and ease of navigating narrow sections. Conversely, a private car is suitable for groups of friends or families, especially when bringing many items for a picnic.
In case of using ride-hailing taxis or service cars, visitors should clearly negotiate the fare and waiting time before departing, as Tuyet Tinh Coc is quite far from the city center and there are not many fixed pick-up/drop-off points in the area. Thorough preparation will help the journey to Tuyet Tinh Coc Hai Phong be smoother and more complete.
3. Exploring the Beauty of Tuyet Tinh Coc Hai Phong

Tuyet Tinh Coc Hai Phong with its rare jade green water. (Source: Collected)
Tuyet Tinh Coc Hai Phong is a destination that captivates everyone with its rare jade green water and majestic surrounding rocky mountain scenery. It not only offers a peaceful and quiet space but is also an ideal "check-in paradise" for photography lovers and those who want to fully enjoy natural beauty.
3.1. The charm of the jade green lake – an "emerald gem" in Thuy Nguyen
The most special feature of Tuyet Tinh Coc Hai Phong is its natural jade green water, which is rare in any other artificial lake. This characteristic green color is formed from the dissolution of minerals in limestone combined with residual chemicals left after mining, creating a color effect that changes with the seasons, weather, and time of day.
Standing by the lake, visitors are captivated by the mirror-like calm water, reflecting the clear blue sky and the towering limestone mountains surrounding it. This reflection effect makes the scenery mystical and artistic, as if transporting viewers into a fairy tale world in real life – the reason why Tuyet Tinh Coc has become the most famous check-in spot in Hai Phong.
Notably, the lake's water color is never fixed but changes depending on the time of day. In the early morning, the lake surface has a deep, calm green hue; at noon, sunlight shines through, making the water clear and bright; and as the afternoon approaches, the water color shifts to a gentle green, creating a constantly changing and enchanting natural picture. It is this subtle variation that has made Tuyet Tinh Coc Hai Phong a paradise for photography enthusiasts and lovers of natural beauty.
3.2. Terrain, peaceful atmosphere, and million-like check-in views
The landscape around Tuyet Tinh Coc Hai Phong possesses a beauty that blends wildness with the characteristic poetic charm of the limestone mountain region. Amidst this vast space, the calm jade green lake is surrounded by towering rocky mountains and rocky outcrops reflecting on the shore, creating a perfect backdrop for check-in photos, graduation photos, or artistic outdoor shoots.
Upon arriving here, visitors will clearly feel the absolute tranquility – where all noisy sounds seem to disappear, leaving only the gentle rustling of the wind on the water's surface. Surrounding the lake is a simple Northern Vietnamese countryside scene, with lush green trees, fresh air, and a few small houses hidden in the distance, offering a rare sense of peace and relaxation.
Every corner of Tuyet Tinh Coc Hai Phong can become an ideal photo spot: from the long stretches of white rocks, the grass hills swaying in the wind, to the spontaneous natural rock crevices. The vast open sky, the emerald green lake, and the perfect natural light are what create its irresistible charm, making it a creative paradise for young people and professional photographers.
3.3. Unmissable experiences at Tuyet Tinh Coc Hai Phong
Tuyet Tinh Coc Hai Phong offers unmissable experiences for visitors, from outdoor photography against the majestic natural scenery to enjoying peaceful picnics by the lake. Every corner of the jade green water and natural rock formations creates unique moments, making the exploration trip memorable and complete.
The most beloved activity at Tuyet Tinh Coc Hai Phong is outdoor photography. With its majestic natural scenery, jade green water, and perfect natural light, it serves as an ideal backdrop for wedding photos, artistic portraits, or fashion shoots. Each corner of the lake offers vivid and unique pictures, making Tuyet Tinh Coc the most famous check-in destination in the Port City.
Besides photography, visitors can bring light snacks, drinks, and a small mat to organize a picnic by the lake. Amidst the fresh air and peaceful scenery, enjoying a light meal with friends or family will bring relaxing and memorable moments.
Additionally, many people enjoy strolling around the lake, exploring the natural rock formations, or capturing the wild beauty of the plants and rocks. However, visitors should maintain a safe distance from the water's edge and avoid swimming, as the lake is quite deep, to ensure absolute safety during their trip.
4. Tips for safe fun at Tuyet Tinh Coc Hai Phong 2026

Ensure safety when visiting Tuyet Tinh Coc Hai Phong. (Source: Collected)
When exploring Tuyet Tinh Coc Hai Phong, ensuring safety is always the top priority for a complete and enjoyable trip. Following guidelines, equipping necessary items, and maintaining environmental awareness will help visitors enjoy the beautiful scenery and experience the peaceful atmosphere here safely.
During the exploration of Tuyet Tinh Coc Hai Phong, personal safety must always be prioritized. Visitors should not swim or wade into the lake, as the depth of 30–40 m, low water temperature, and slippery rocks pose many dangers. In fact, there have been some serious incidents recorded here due to violations of this regulation, so you must strictly adhere to safety measures when visiting.
Please maintain general hygiene, do not litter in the lake or surrounding areas. Visitors should bring personal trash bags, collect their waste, and take it home after the trip to contribute to preserving the natural landscape of Tuyet Tinh Coc. Additionally, maintain order and limit loud noises so that everyone can enjoy the quiet and peaceful space here.
When preparing for the trip, prioritize lightweight, easy-to-move clothing, and wear sports shoes or sandals to avoid slipping. A light jacket is also necessary in case of sudden weather changes. Furthermore, don't forget to bring a camera or phone for photos, a power bank, drinking water, snacks, a picnic mat, along with a hat, sunglasses, and sunscreen if traveling during the day – as there are no public power outlets in this area.
To get the best photos at Tuyet Tinh Coc Hai Phong, you should choose morning shots, utilizing the light reflecting on the water surface. Some visitors also prepare long dresses, traditional costumes, or brightly colored outfits to create impressive highlights in their photos.
According to the experience of many visitors, absolutely do not climb on steep cliffs or areas with warning signs, as the limestone rocks are sharp and prone to collapse, posing a risk of accidents. In particular, be cautious when moving near the water's edge with jagged rocks. Additionally, you should avoid visiting during heavy rain or dense fog, as it affects visibility and compromises safety.
The most ideal time to visit Tuyet Tinh Coc Hai Phong is on weekday mornings, when the number of visitors is low, the light is soft and beautiful, and the space retains the characteristic tranquility and freshness of a "fairyland" in the heart of the Port City.
5. Combined Tourist Destinations around Tuyet Tinh Coc Hai Phong
Exploring Tuyet Tinh Coc Hai Phong not only offers an experience of wild nature but also opens up opportunities to combine cultural, historical, and entertainment journeys around Thuy Nguyen. From peaceful villages, ancient relics to islands, beaches, and modern amusement parks like Cat Ba or Sun World Ha Long, visitors will have a diverse, complete, and memorable trip.
5.1. Visiting Thuy Nguyen Villages and Notable Relics
Exploring Tuyet Tinh Coc Hai Phong not only offers a magnificent natural experience but also an opportunity to learn about the unique cultural life of the Thuy Nguyen region. This area still preserves many traditional villages, houses with moss-covered red tile roofs characteristic of the Northeastern region, along with bustling village markets selling fresh agricultural products, reflecting the simplicity of the local people.
Visitors can visit An Son communal house or the village guardian spirit temples in the area to better understand the folk beliefs and spiritual culture of the local people. This is also an ideal stop for photographing ancient architecture, preserving the peaceful moments of a Northern Vietnamese countryside.
In particular, An Son market is an unmissable highlight of the journey. The rustic atmosphere, familiar calls, and the aroma of simple dishes create a sense of closeness, allowing visitors to fully appreciate the traditional beauty of the Thuy Nguyen land – where nature, culture, and the people of Hai Phong converge.
5.2. Exploring Cat Ba
From Thuy Nguyen, visitors can easily travel to Cat Ba Island – Hai Phong's green pearl. The modern Sun World cable car connects the mainland with the island, offering an impressive high-altitude sightseeing experience. From the cabin, visitors will admire the panoramic view of Lan Ha Bay with thousands of large and small islands emerging amidst the clear blue water, creating a rare and magnificent natural landscape.
Cat Ba is also known for its fine white sandy beaches, a biodiverse national forest, and a host of attractive outdoor activities such as kayaking, snorkeling, or forest trekking. Combining a visit to Tuyet Tinh Coc Thuy Nguyen – a place of wild, tranquil beauty, with an exploration of the modern, vibrant Cat Ba Island will make your journey more complete, balanced, and memorable than ever before.
5.3. Combining with Sun World Ha Long Tourism

Visitors can have fun at Sun World Ha Long. (Source: Collected)
Ha Long, located just about 1 hour away from Hai Phong, is an ideal choice for a 2-3 day trip combining exploration and relaxation. Here, Sun World Ha Long stands out with the most modern entertainment and recreation ecosystem in Northern Vietnam, including a large-scale theme park, thrilling game zones, and a cable car route offering panoramic views of the majestic Ha Long Bay.
From Tuyet Tinh Coc Hai Phong to Ha Long, visitors can continue their journey with a cruise on the bay, admiring the magical beauty of Sung Sot Cave, Dau Go Cave, and hundreds of unique limestone islands. Combining sightseeing, entertainment, seafood dining, and luxurious relaxation, Ha Long becomes the perfect destination for those who want to fully enjoy the natural beauty and culture of the Northeastern region.
6. Frequently Asked Questions about Tuyet Tinh Coc Hai Phong 2026

Visiting Tuyet Tinh Coc Hai Phong is free for all tourists. (Source: Compilation)
When exploring Tuyet Tinh Coc Hai Phong, visitors often have many questions regarding visiting hours, support services, and safety conditions at this location. Understanding updated information about the best season, time regulations, and service choices will make the trip more convenient, safe, and complete.
6.1. Is Tuyet Tinh Coc Hai Phong open freely/on holidays?
Tuyet Tinh Coc Hai Phong is a free attraction open year-round, allowing visitors to come at any time of the day. However, for safety reasons, you should avoid coming too early (before 6 AM) or too late (after 6 PM) when the area starts to lack natural light.
On holidays, Tet, or weekends, the entrance may sometimes be temporarily restricted for safety or maintenance reasons, but closure times are usually very short and will be announced in advance on local travel groups. Therefore, before departing, you should check the latest updated information to be more proactive in your travel plans.
If you love tranquility, weekdays are an ideal choice as this area is quite deserted, suitable for photography, relaxation, and light picnics. The best time to visit Tuyet Tinh Coc Hai Phong is from 7 AM to 10 AM, when the gentle sunlight reflects on the lake, creating the most shimmering and poetic scenery of the day.
6.2. Are there photography or guide services available?
Currently, Tuyet Tinh Coc Hai Phong does not have a fixed team of professional photographers or guides. Most visitors explore the location on their own or contact freelance photographers and guides in the center of Hai Phong.
In recent times, many local photographers have started taking photos at Tuyet Tinh Coc due to the increasing appeal of this check-in spot. Visitors can search for information and service reviews through Hai Phong travel groups or ask locals directly in the area to make a suitable choice.
6.3. What is the best season to visit Tuyet Tinh Coc Hai Phong?
The most ideal time to explore Tuyet Tinh Coc Hai Phong is from January to March, when spring brings cool, pleasant weather. At this time, gentle sunlight reflects on the jade-green lake, and the surrounding trees are adorned with fresh green foliage, creating a pure and vibrant landscape.
Autumn (September – October) is also a time greatly loved by tourists thanks to the dry weather, few storms, and clear blue skies that make the lake water shine with a brilliant deep blue color – extremely ideal for photography and exploration enthusiasts.
If you choose summer, although the temperature is higher, the bright natural light will make the lake and scenery more vivid in every frame. Meanwhile, winter brings a peaceful and quiet atmosphere, suitable for tourists seeking privacy and serenity. However, it is advisable to avoid visiting in July-August as this is the storm season, which can affect safety and the visiting experience at Tuyet Tinh Coc Hai Phong.
6.4. What are the local regulations regarding hours/visits?
Local authorities advise tourists not to stay at Tuyet Tinh Coc Hai Phong after 4:30 PM to ensure safety on the return journey. After this time, the light gradually weakens, and visibility is limited, making movement difficult, especially for those unfamiliar with the rocky mountain terrain.
An important regulation that visitors must strictly adhere to is not to swim or get too close to the edge of the lake. The deep water and slippery limestone terrain pose many dangers. Local authorities and residents frequently remind visitors of this regulation due to past unfortunate accidents, and violations may result in administrative penalties.
Besides, please maintain general hygiene, do not litter, pick plants, or damage the natural landscape. Do not make loud noises to maintain the quiet and pure atmosphere of the lake. Following the guidance of local people will not only help you protect yourself but also contribute to preserving the pristine beauty of Tuyet Tinh Coc Hai Phong for future journeys.
Tuyet Tinh Coc Hai Phong is an ideal check-in spot for nature lovers who want to capture impressive moments. In 2025, this place promises to offer a wonderful experience with its majestic scenery and peaceful atmosphere. Don't forget to prepare your camera to capture



