About Dark Cave
Dark Cave – Hang Tối is part of the Phong Nha – Ke Bang National Park in Son Trach Commune, Bo Trach District, Quang Binh Province.
It lies on the bank of the Chay River (a tributary of the Son River) and is developed as an adventure ecotourism destination.
The cave has both water and dry sections, plus stalactite systems, moss and ferns (thanks to high humidity), and some parts with fossilized limestone features.
Details
Length: 5,258 meters
Entrance: Two doors: the front door facing Chay River (30m high, more than 10m wide). And the back door facing the forest (50m high, about 20m wide)
Height: Up to 80 meters
Width: 50 meters
What to do in Dark Cave tour
1. Ziplining across Chay river
The adventure at Chay River – Dark Cave often begins with an exciting zipline ride across the river – a signature activity here. Stretching 400 meters, this double-cable zipline whisks visitors from the riverbank to the entrance of Dark Cave.
2. Exploring Dark cave
Dark Cave retains its untouched, natural beauty, free from artificial lighting, which gives it a truly mysterious and enchanting atmosphere. With headlamps and helmets, visitors become explorers—across underground rivers and discovering glittering stalactites deep within the cave.
3. Kayaking/swimming/water games
Unlike the adventurous activities, swimming and kayaking on the Chay River offer a relaxing yet exciting way to enjoy the scenery. Visitors relax on inflatable two-person kayaks, with life jackets provided for safety. After emerging from Dark Cave, paddling through the river’s emerald-green waters is the perfect way to soak in the serene beauty of the landscape.
The site features exciting water activities like a short zipline plunge into the river, rope-climbing challenges, and inflatable water playgrounds—offering fun and thrills for all ages.
4. Mud bath – the most unique activity of this attraction
Embark on a unique adventure with the Mud Bath inside the mysterious Dark Cave. Sink into smooth, mineral-rich mud that’s not only fun to enjoy but also offers incredible benefits—soothing the skin, easing body aches, relaxing joints, reducing stress, and refreshing the mind. Surrounded by ancient cave walls and the cool underground air, the atmosphere is both tranquil and thrilling. Suitable for all ages, this experience combines wellness with a sense of adventure. Don’t miss this unforgettable highlight that’s as rejuvenating as it is fun!
PHONG NHA CAVE – DARK CAVE 1 DAY TOUR
What to eat here
Chay River – Dark Cave doesn’t just offer thrilling adventures—it also treats visitors to delicious local cuisine. After hours of ziplining, swimming, and exploring, refuel with a hearty meal featuring some of Quang Binh’s most beloved specialties.
One of the best-seller is the mixed food bamboo tray, which includes a variety of rustic yet delicious dishes: grilled stream fish wrapped in banana leaves, grilled chicken, grilled pork belly, grilled ribs, sticky rice balls with sesame salt, boiled vegetables, pickles.
These dishes offer more than just nourishment—they’re a true taste of the countryside, rich in authentic, rustic flavors. After a day of adventure, nothing beats enjoying these flavorful dishes to recharge your energy.
Best time to visit Dark cave
Phong Nha – Ke Bang has four distinct seasons, each bringing different weather patterns that can influence your travel experience—especially when planning outdoor activities like those at Chay River – Dark Cave.
Spring (March to May): A great time to visit, with temperatures ranging from 24°C to 32°C during the day. The weather is generally pleasant and ideal for kayaking, ziplining, and swimming.
Summer (June to August): Early summer (June) is another excellent time to go, with hot and sunny weather perfect for water activities and mud bath in cool cave. Temperatures peak up to 37, 38 °C, so stay hydrated and wear sun protection.
Autumn (September to November): It’s time you should avoid visiting. The region sees frequent storms, heavy rainfall, and flooding. These conditions can disrupt activities and affect safety.
Winter (December to February): While rainfall decreases, temperatures drop to 18°C–24°C, making it too cold for swimming or mud bathing.
✅ Recommended Time to Visit:
Best: June to August – sunny, dry and great for all activities.
Avoid: September to November – stormy and wet, November to February – too cold to take part in water activities.
Less ideal: February to May – Not too hot to enjoy water activities comfortably, children are susceptible to illness.
Ticket price for Chay river – Dark cave services
Full-access ticket
- Adults (Height from 1.3m, weight from 40-90kg): 450,000 VND/person
- Children (Height from 1.1m to 1.3m): 150,000 VND/person
Includes: Zipline to Dark Cave, cave exploration, mud bath, kayaking, zipline across the river, wooden walkways, water sports, and safety equipment (Children are not allowed to participate in extreme activities).
Limit-access ticket (no cave access)
- Adults (Height from 1.3m, weight from 40-90kg): 250,000 VND/person
- Children (Height from 1.1m to 1.3m): 110,000 VND/person
Includes: Zipline to Dark Cave (cave exploration and mud bath not included), kayaking, zipline across the river, wooden walkways, water sports, and safety equipment (Children are not allowed to participate in extreme activities).
River-only ticket
- Adults (Height from 1.3m, weight from 40-90kg): 150,000 VND/person
- Children (Height from 1.1m to 1.3m): 110,000 VND/person
Includes: Kayaking, zipline across the river, wooden walkways, water sports, and safety equipment.
Conclusion
Chay River – Dark Cave is a unique destination that combines natural beauty with exciting outdoor adventures. Whether you’re exploring the dark depths of the cave, floating in a mineral-rich mud bath, or enjoying the local cuisine by the riverside, the experience is both refreshing and memorable. Surrounded by the stunning landscapes of Phong Nha – Kẻ Bàng, it offers the perfect attraction for nature lovers and thrill-seekers alike. Just plan accordingly to make the most of everything this incredible spot has to offer.
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